A strong motorcycle turbo choice must match your engine and provide clear fitment details; the maXpeedingrods VZ21 suits riders evaluating a 500–600cc small-engine application. This roundup compares six listings built around VZ21/RHB31 and GT15/T15 designs, with stated engine ranges from 500cc to 1000cc and power figures up to 225+ HP or WHP. These are turbocharger listings, not necessarily complete bolt-on kits, so check what components are actually included and verify compatibility before ordering.
The VZ21 options include specific OEM references, while the GT15 listings identify flange, bearing, cooling, or gasket details. Use the comparison to narrow your shortlist, then confirm dimensions, engine configuration, and installation requirements with the seller or a qualified mechanic.
The maXpeedingrods VZ21 is the leading choice for a buyer whose motorcycle or small-engine application matches its stated 500–600cc range. Its listing identifies motorcycle and ATV use, cites 100HP, and provides VZ21 and 13900-62D51 references alongside several related part numbers. Those details make it easier to check fitment than the broader GT15 listings.
It is a turbocharger rather than a confirmed complete kit, so verify your engine and required installation parts before buying.
Our Top Picks
Best OverallLists motorcycle and ATV use for 500–600cc engines, a 100HP application, and VZ21 plus 13900-62D51 references for fitment checks.
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Best OEM ReferencesTargets 500–600cc small engines including motorcycles and ATVs, and names Suzuki YA1/F6AT and 21R707-0011-G1 applications.
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Broadest Engine RangeStates compatibility with small engines from 500cc to 1000cc and lists motorcycles, ATVs, RHB31, and included mounting hardware.
View on Amazon- Most Install Details JDMSPEED GT15 T15
Compare the Motorcycle Turbocharger Options
| # | Product | Package Dimensions | Weight | Buy |
|---|---|---|---|---|
| 1 | 1. maXpeedingrods VZ21Best Overall | — | 7.35 lb | View on Amazon |
| 2 | 2. ADPOW VZ21 RHB31Best OEM References | 10.7 x 9.7 x 8.9 in | 7.58 lb | View on Amazon |
| 3 | 3. ACHMRJIJ AP03 VZ21Broadest Engine Range | 1.18 x 0.79 x 0.39 in | 14.1 oz | View on Amazon |
| 4 |  4. JDMSPEED GT15 T15Most Install Details | 9.45 x 9.06 x 7.48 in | 9.46 lb | View on Amazon |
| 5 |  5. WYKMG GT15 T15Flanged GT15 T15 Small-Engine Builds | 0.39 x 0.39 x 0.39 in | 1.76 oz | View on Amazon |
| 6 |  6. ROROAK GT15 T15Compact GT15 T15 Motorcycle Setups | 1.18 x 0.79 x 0.39 in | 1.76 oz | View on Amazon |
Detailed Reviews: Best Turbo Kit For Motorcycle
#1 · Best Overall
1. maXpeedingrods VZ21
- Weight: 7.35 lb
Best for: Heat-Resistant Small-Engine Replacement.
Why it ranks #1: Lists motorcycle and ATV use for 500–600cc engines, a 100HP application, and VZ21 plus 13900-62D51 references for fitment checks.
A ductile-iron turbine housing rated to 1292°F distinguishes this maXpeedingrods VZ21 turbocharger, while its alloy turbine wheel is specified to operate at 1652°F. Those temperature figures matter to buyers looking for a turbo for a 500–600cc small engine, including listed snowmobile, quad, Rhino, motorcycle, and ATV applications.
The stated 500–600cc application range and 100HP specification give buyers a defined starting point when checking whether this VZ21 suits a small-engine build. Its compatibility listing names Suzuki Alto YA1 F6AT and 21R707-0011-G1 engines, along with OE references 13900-62D51 and 13900-62D50, helping identify a potential replacement. The ductile-iron housing and oxidation-stable alloy wheel have stated high-temperature limits, useful considerations for buyers evaluating components for demanding operating conditions.
- Listed for 500–600cc small-engine applications
- 100HP application specification
- Ductile-iron turbine housing rated to 1292°F
- Alloy turbine wheel specified for operation at 1652°F
- The listed engine application range is narrower than the 500–1000cc range stated for ACHMRJI’s turbocharger.
Skip it if you need a listed application above 600cc; ACHMRJI’s AP03 VZ21 RHB31 specifies small engines from 500cc to 1000cc.
For riders sourcing a VZ21-style turbo for a listed 500–600cc motorcycle, ATV, quad, or snowmobile engine, this model offers specific engine references and temperature ratings. Check your engine against its stated application before choosing it.
Full product details
| Brand | maXpeedingrods |
|---|---|
| Item Weight | 7.35 pounds |
| Item model number | Snowmobiles Quads, Rhino, Motorcycles |
| Manufacturer | maXpeedingrods |
| Part Number | VZ21 |
| Model | VZ21 |
| Dimensions | 10.24 x 9.84 x 9.06 inches |
| Voltage | 12 volts |
Listed on Amazon as: maXpeedingrods VZ21 RHB31 Turbo Turbocharger for Small Engine Snowmobiles Quads Rhino Motorcycle ATV, for Suzuki Alto with YA1 F6AT 21R707-0011-G1, 13900-62D51, Basic VL Series
View on Amazon#2 · Best OEM References
2. ADPOW VZ21 RHB31
- Package Dimensions: 10.7 x 9.7 x 8.9 in
- Weight: 7.58 lb
Best for: Specified 500–600cc Engine Replacements.
Why it ranks #2: Targets 500–600cc small engines including motorcycles and ATVs, and names Suzuki YA1/F6AT and 21R707-0011-G1 applications.
Named compatibility with Briggs & Stratton 21R707-0011-G1 and Suzuki Alto YA1/F6AT engines is the ADPOW VZ21 RHB31’s most concrete buying distinction. The listing also targets 500–600cc small engines and identifies snowmobiles, quads, Rhino vehicles, motorcycles, and ATVs among its applications.
The named Briggs & Stratton and Suzuki engine references help buyers compare this turbo with an existing setup, while OE numbers 13900-62D51 and 13900-62D50 provide additional replacement identifiers. Its stated 500–600cc application range narrows the intended small-engine scope. ADPOW describes the unit as a turbo-driven forced-intake device and claims smooth power output and a low failure rate; those claims may help buyers weighing operation in harsh conditions, but do not replace checking engine compatibility.
- Lists Briggs & Stratton 21R707-0011-G1 compatibility
- Lists Suzuki Alto YA1/F6AT compatibility
- Names OE references 13900-62D51 and 13900-62D50
- Describes smooth power output and low failure rate
- The stated application range is 500–600cc, not the broader 500–1000cc range listed by ACHMRJI.
Skip it if you need a listed range extending to 1000cc; ACHMRJI’s AP03 VZ21 RHB31 specifies 500cc to 1000cc small engines.
Choose this ADPOW turbo if your small-engine project matches its named Briggs & Stratton or Suzuki references, or its listed 500–600cc applications. The product page emphasizes operating performance, but buyers should still check their specific engine details.
Full product details
| Brand | ADPOW |
|---|---|
| Item Weight | 7.58 pounds |
| Item model number | ADTC0090706 |
| Manufacturer | ADPOW |
| Part Number | ADTC0090706 |
| Package Dimensions | 10.7 x 9.7 x 8.9 inches |
Listed on Amazon as: VZ21 RHB31 Turbo Charger 100HP 13900-62D51 Compatible with Small Engines
View on Amazon#3 · Broadest Engine Range
3. ACHMRJIJ AP03 VZ21
- Package Dimensions: 1.18 x 0.79 x 0.39 in
- Weight: 14.1 oz
Best for: Broader-Range Small-Engine Builds.
Why it ranks #3: States compatibility with small engines from 500cc to 1000cc and lists motorcycles, ATVs, RHB31, and included mounting hardware.
A stated 500cc-to-1000cc small-engine range gives the ACHMRJI AP03 VZ21 RHB31 a broader listed displacement scope than the 500–600cc applications named by some VZ21 alternatives. The product also specifies compatibility with snowmobiles, ATVs, motorcycles, and similar applications, with a stated target of up to 100HP.
The 500cc-to-1000cc range helps buyers screen this turbo against small-engine builds beyond the 500–600cc applications specified by some listings. Its named snowmobile, quad, and motorcycle uses provide additional context for that range. The description identifies water cooling and includes mounting hardware, which gives installers a stated cooling configuration and included fitting components to consider during planning. OEM references including VZ21 and 13900-62D51 offer further identification points when assessing a replacement.
- Listed for small engines from 500cc to 1000cc
- Names snowmobiles, ATVs, motorcycles, and similar uses
- Specifies water cooling
- Mounting hardware is listed as included
- The listing does not provide turbine housing or wheel temperature ratings.
Skip it if you need stated turbine temperature ratings; maXpeedingrods VZ21 lists housing and wheel operating-temperature figures.
This suits buyers comparing a water-cooled turbo for a 500–1000cc small-engine motorcycle, ATV, or snowmobile application. Use the listed engine range and OEM references as screening details, and account for the included mounting hardware when planning installation.
Full product details
| Brand | ACHMRJIJ |
|---|---|
| Item Weight | 14.1 ounces |
| Item model number | ACHMRJIJ789 |
| Manufacturer | ACHMRJIJ |
| Part Number | ACHMRJIJ789 |
| Model | ACHMRJIJ789 |
| Package Dimensions | 1.18 x 0.79 x 0.39 inches |
Listed on Amazon as: Turbocharger Compatible With Small Engines 500cc To 1000cc Suitable Compatible With Snowmobiles ATVs Motorcycles And Similar Applications 100HP AP03 VZ21 RHB31
View on Amazon#4 · Most Install Details
4. JDMSPEED GT15 T15
- Package Dimensions: 9.45 x 9.06 x 7.48 in
- Weight: 9.46 lb
Best for: Gasket-Included GT15 T15 Replacement.
Why it ranks #4: Identifies GT15/T15 interchange, oil cooling, journal bearing, 1.75-inch air inlet, and included manifold and outlet gaskets.
The JDMSPEED GT15 T15 listing includes manifold and outlet gaskets with the turbocharger, giving replacement buyers two installation-related components in the package. It also specifies oil cooling, a journal bearing, a 1.75-inch air inlet, and a stated output range of 100–225+ WHP.
The included manifold and outlet gaskets can help installers account for those connections during a replacement job, while the listing’s GT15 and T15 interchange references help identify the intended turbo family. Oil cooling and a journal bearing define the stated hardware configuration; the 1.75-inch air inlet is a practical dimension to check against the intake setup. JDMSPEED describes the fit as exact, but also directs buyers to the product description for vehicle compatibility.
- Manifold and outlet gaskets are included
- Specifies oil cooling
- Specifies a journal bearing
- Lists a 1.75-inch air inlet and 100–225+ WHP
- The listing directs buyers to the product description for vehicle compatibility details.
Skip it if you need a stated 2–4-cylinder application and flange dimensions; WYKMG’s GT15 T15 listing provides both.
This is a candidate for buyers replacing a GT15 or T15 turbo who value listed gaskets and an oil-cooled journal-bearing configuration. Check the vehicle compatibility details and confirm the 1.75-inch inlet suits your intake arrangement.
Full product details
| Brand | JDMSPEED |
|---|---|
| Item Weight | 9.46 pounds |
| Manufacturer | JDMSPEED |
| Part Number | Turbocharger GT15 |
| Package Dimensions | 9.45 x 9.06 x 7.48 inches |
Listed on Amazon as: Turbocharger Turbo Racing GT15 T15 Replacement for Motorcycle ATV Bike
View on Amazon#5
5. WYKMG GT15 T15
- Package Dimensions: 0.39 x 0.39 x 0.39 in
- Weight: 1.76 oz
Best for: Flanged GT15 T15 Small-Engine Builds.
Why it ranks #5: Specifies a GT15/T15 setup for 2–4-cylinder small engines, oil cooling, floating bearing, and three-bolt and four-bolt flanges.
A specified three-bolt exhaust inlet and four-bolt outlet give the WYKMG GT15 T15 a concrete installation profile for buyers planning a small-engine turbo setup. The listing also names 2–4-cylinder compatibility, oil cooling, a floating bearing, and a 100–225+ HP range.
The 2–4-cylinder application listing helps buyers screen the unit for a small-engine build, while the three-bolt exhaust inlet and four-bolt outlet provide flange details to compare with the existing system. Oil cooling and a floating bearing specify the listed core arrangement. WYKMG also claims its precisely machined compression wheel is intended to reduce lag and support immediate throttle response; that claim may matter to riders focused on throttle behavior, though it does not establish a measured result.
- Listed for 2–4-cylinder small engines
- Three-bolt exhaust inlet flange
- Four-bolt exhaust outlet flange
- Specifies oil cooling and a floating bearing
- The listing provides no stated turbine temperature rating.
Skip it if you need a stated temperature rating for the turbine components; maXpeedingrods’ VZ21 listing gives housing and wheel figures.
This WYKMG unit fits buyers checking a GT15 T15 turbo for a 2–4-cylinder small engine, especially where flange layout and bearing type are key screening details. Compare the listed flange pattern with your exhaust setup before selecting it.
Full product details
| Brand | WYKMG |
|---|---|
| Item Weight | 1.76 ounces |
| Item model number | wangpc1990 |
| Manufacturer | wangpc1990 |
| Part Number | wangpc1990 |
| Model | wangpc1990 |
| Package Dimensions | 0.39 x 0.39 x 0.39 inches |
Listed on Amazon as: BVWBCR OEM Turbocharger Compatible for Motorcycle Small Turbo System Kit GT15 T15 452213 452098 Compress .42A/R Engine Pressurization Set Assembly
View on Amazon#6
6. ROROAK GT15 T15
- Package Dimensions: 1.18 x 0.79 x 0.39 in
- Weight: 1.76 oz
Best for: Compact GT15 T15 Motorcycle Setups.
Why it ranks #6: Names motorcycles and ATVs and gives 2–4-cylinder fitment plus flange details, but asks buyers to provide vehicle information after ordering.
The ROROAK listing specifies a GT15 T15 turbo for 2–4-cylinder small engines and identifies a three-bolt downpipe outlet and four-bolt mounting flange. Those details give motorcycle and ATV builders concrete application and connection information to compare with an existing setup.
The stated 2–4-cylinder application helps buyers screen this turbo for a small-engine motorcycle or ATV project, while the three-bolt downpipe outlet and four-bolt mounting flange give specific connection details for installation planning. ROROAK also claims performance at high altitude, attributing it to compensation for thinner air. The listing asks buyers to provide vehicle VIN, model, and year after ordering, so this information is part of its stated order process.
- Listed for small engines with 2–4 cylinders
- Names motorcycle and ATV applications
- Three-bolt downpipe outlet is specified
- Four-bolt mounting flange is specified
- The listing requires the vehicle VIN, model, and year after ordering.
Skip it if you prefer a listing that includes manifold and outlet gaskets; JDMSPEED’s GT15 T15 package lists both.
Consider this ROROAK turbo if your motorcycle or ATV has a 2–4-cylinder small engine and its specified flange layout suits your installation. The listing requests vehicle details after ordering, and claims high-altitude performance without providing a measured result.
Full product details
| Brand | ROROAK |
|---|---|
| Item Weight | 1.76 ounces |
| Item model number | wushaochun |
| Manufacturer | wushaochun |
| Package Dimensions | 1.18 x 0.79 x 0.39 inches |
Listed on Amazon as: GT15 T15 Car Turbo Compatible for Motorcycle ATV Bike Small Engine Fit 2-4 Cyln High Performance Turbocharger for Enhanced Engine Power
View on AmazonCheck whether the listing is a turbo or a complete kit
Do not assume that a motorcycle turbocharger listing supplies every part needed for installation. The maXpeedingrods VZ21, ADPOW VZ21 RHB31, and JDMSPEED GT15 T15 listings identify turbochargers; JDMSPEED specifically includes a turbocharger with manifold and outlet gaskets. ACHMRJIJ lists mounting hardware, but that alone does not establish that the package contains a complete manifold, oil or water lines, intake plumbing, or controls.
WYKMG and ROROAK describe turbocharger assemblies rather than a full motorcycle conversion system. Before ordering, ask for an itemized package list and compare it with your engine’s existing setup.
A missing part can turn an apparently compatible turbo into an incomplete installation, while the supplied product data does not confirm all the components or fabrication work required.
Resolve fitment before choosing by engine size
A displacement range or a motorcycle label does not prove that a turbo fits a particular motorcycle. The VZ21 listings focus on 500–600cc applications, with ACHMRJIJ stating a broader 500–1000cc range; that does not establish matching exhaust and intake connections across every engine in that range. The GT15 listings instead give some configuration clues: WYKMG and ROROAK specify 2–4 cylinders, and WYKMG identifies three-bolt exhaust inlet and four-bolt outlet flanges.
JDMSPEED lists a 1.75-inch air inlet. These details can help you compare, but they are not a verified fitment chart for your bike.
Check engine code, displacement, cylinder count, flange pattern, and clearance against the actual listing. ROROAK explicitly asks for vehicle VIN, model, and year after ordering; treat that request as a prompt to confirm compatibility beforehand.
How to Choose a Motorcycle Turbocharger
Engine displacement and configuration
Start by matching the turbo’s stated engine range and configuration to your motorcycle rather than relying on a generic motorcycle label. maXpeedingrods and ADPOW list 500–600cc small-engine applications, while ACHMRJIJ states 500cc to 1000cc. WYKMG and ROROAK give a different clue, specifying small engines with 2–4 cylinders but no displacement range in the supplied details.
A buyer with a 500–600cc engine and matching application references may prioritize the first two VZ21 options. Someone evaluating a larger engine within the stated range can investigate ACHMRJIJ, but should confirm fitment directly.
For a multi-cylinder setup, the GT15 cylinder-count statements are useful starting points, not proof of exact fit.
Power and turbo specification details
Compare stated power and hardware specifications, but treat listed figures as claims rather than guaranteed results on your motorcycle. The VZ21 listings cite 100HP; JDMSPEED states 100–225+ WHP and gives a 1.75-inch air inlet, journal bearing, and oil cooling. WYKMG also lists 100–225+ HP, oil cooling, and a floating bearing, alongside 41.35mm turbine inducer diameter.
These figures use different labels and should not be treated as directly equivalent. A buyer seeking documented connection and bearing details may prefer the more specified GT15 listings.
Someone prioritizing a stated 100HP small-engine application may find the VZ21 options more directly relevant. Confirm the intended operating range and supporting engine requirements before using power figures to decide.
Included hardware and connection details
Look for a clearly stated package list and connection dimensions before assuming you can install the turbo as supplied. JDMSPEED says it includes manifold and outlet gaskets, while ACHMRJIJ lists mounting hardware. WYKMG specifies a three-bolt exhaust inlet and four-bolt exhaust outlet; JDMSPEED provides a 1.75-inch air inlet, and ROROAK also identifies three-bolt and four-bolt flange details.
The VZ21 descriptions emphasize turbocharger and application references, not a complete installation package. If you already have compatible plumbing and mounting parts, flange information may be the deciding detail.
If you need supplied accessories, give more weight to listings that name them, then verify exactly what is in the box. None of these details alone confirms a complete bolt-on motorcycle kit.
Which Motorcycle Turbocharger Should You Choose?
For a 500–600cc motorcycle or small-engine application with matching references, choose maXpeedingrods VZ21: it ranks first for its explicit application range, 100HP figure, and OEM references. If Suzuki YA1/F6AT or Briggs & Stratton 21R707-0011-G1 fitment is your focus, consider ADPOW VZ21 RHB31 and verify the engine code. For a stated 500–1000cc range, ACHMRJIJ AP03 VZ21 is the broadest listed option, with mounting hardware noted.
Choose JDMSPEED GT15 T15 if the listed gaskets and oil-cooled journal-bearing details matter. WYKMG GT15 T15 supplies useful 2–4-cylinder and flange specifications; ROROAK GT15 T15 also names that cylinder range but requests vehicle details after ordering.
Confirm all dimensions and installation needs before purchase.
Related Buying Guides
Frequently Asked Questions
What other parts are needed to install a motorcycle turbocharger?
Installation may require supporting parts beyond the turbocharger, but the listings do not establish a complete parts list for every engine. Check whether the selected item includes mounting hardware, gaskets, oil lines, and other required components. Confirm the full setup with an installer familiar with your motorcycle and engine before buying.
How can I confirm that a VZ21 or GT15 turbo fits my engine?
Confirm fitment by matching your engine displacement, engine code, mounting dimensions, and listed part references against the product details. The leading VZ21 listing states a 500–600cc range and cites 13900-62D51 and related references; other listings give different ranges or fitment notes. Verify all dimensions and application details before purchase.
What engine tuning or fuel-system changes may be required after adding a turbo?
Tuning and fuel-system needs depend on the engine and complete turbo setup; the supplied listings do not specify a universal calibration or parts list. Have a qualified motorcycle tuner assess fueling and engine management for your application, and do not assume that a turbocharger alone provides the required supporting changes.
Is a listed turbocharger necessarily a complete installation kit?
No. A listing that describes a turbocharger does not by itself confirm that all installation parts are included. The editorial verdict identifies the leading VZ21 as a turbocharger, not a confirmed complete kit.
Check the included components carefully; the AP03 listing, for example, notes mounting hardware, but verify the contents for your exact application.
What should I compare when choosing among these listings?
Compare stated displacement or cylinder range, engine-code and part-number references, and any listed hardware or installation details. The options differ: the leading VZ21 has a stated 500–600cc range and references, while the AP03 VZ21 lists 500–1000cc and mounting hardware. Confirm dimensions and fitment against your engine before deciding.
Final Words
For a 500–600cc motorcycle or small-engine application, start with the maXpeedingrods VZ21 if its listed references match your engine; its listing also cites motorcycle and ATV use and 100HP. For Suzuki YA1/F6AT or Briggs & Stratton 21R707-0011-G1, check the ADPOW VZ21 and engine code. Consider the AP03 for its stated 500–1000cc range.
Treat every option as fitment-dependent, and verify included parts and installation requirements before ordering.
