SKU: 18309696291

AMS Performance Alpha 6 GTX3076 GEN II Turbo Kit - Toyota / A90 Supra B58

Sale price$4190.40 Regular price$4656.00
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Description

AMS Performance Alpha 6 GTX3076 GEN II Turbo Kit - Toyota / A90 Supra B58* 49 State Legal EPA Catted * Adding more horsepower to the new Toyota GR Supra has never been easier, with the new AMS Performance A90 2020 Toyota GR Supra ALPHA 6 GTX3076 GEN II Street Turbo Kit. Our team has engineered and built the 2020 GR Supra platforms first publicly available internally gated full turbo kit that utilizes the OEM electronic wastegate. This unique advancement allows for a seamless integration of the OEM ECU for boost control the


* 49 State Legal EPA Catted *

Adding more horsepower to the new Toyota GR Supra has never been easier, with the new AMS Performance A90 2020 Toyota GR Supra ALPHA 6 GTX3076 GEN II Street Turbo Kit. Our team has engineered and built the 2020 GR Supra platform’s first publicly available internally gated full turbo kit that utilizes the OEM electronic wastegate. This unique advancement allows for a seamless integration of the OEM ECU for boost control the way it was intended from the factory. The GR Supra’s electronic wastegate system particularly excels at boost response over mechanical alternatives, making it the ultimate choice for part throttle drivability or on-off throttle situations as seen on a road course.

  • Utilizing GTX3076 Gen II Garrett© Turbocharger w/ 58mm Inducer
  • Incorporates the Factory Electronic Wastegate for OEM-Like Boost Control
  • GESI G-SPORT EPA Compliant Catalytic Converter
  • Efficient Exhaust Manifold for Optimal Flow and Spool
  • Coolant and Oil Line Sheaths for Superior Heat Management
  • TiAL Internal Wastegate Exhaust Housing with 3.5″ V-Band Discharge
  • Massive Powder Coated 4″ Aluminum Intake Piping
  • Includes CNC Billet Aluminum Oil And Water Port AN Adapter Fittings for Leak-Free Install
  • Installed Oil and Water Lines and Clocked Compressor Cover to Save You Install Time
  • Cleanable and Reusable Dry Media Air Filters
  • Includes all Ancillary Components, Including all Hardware, Lines, and Couplers

Engineered to Win


Our AMS SnailWorks© Engineering Team has spent hundreds of R&D hours refining the AMS Performance A90 2020 Toyota GR Supra ALPHA 6 GTX3076 GEN II Turbo Kit to be the best performing, highest quality, and easiest to install kit on the market. The MKV turbo kit is designed with minimal bends and restrictions by our team to smoothly and efficiently feed more air through the intake and exhaust path and into the B58 engine. Then, focusing on the small details, our team designed the CNC machined adapters to allow the AN coolant and oil lines to install directly to the B58 engine for a leak-free install. We also designed and created our own CNC machined actuator rod adapter to allow us to mount the factory electronic wastegate to the new turbo.

The AMS SnailWorks© Engineering Team has designed the ALPHA 6 Turbo Kit to be a direct bolt-in install without hacking up your prized possession. The ALPHA 6 is fully compatible with A/C, power steering, and all other factory options, and is easily reversible back to stock with a few inexpensive replacement parts. The design of the new Toyota Supra ALPHA 6 Turbo Kit positions it to be the best performing, highest quality, and easiest to install kit on the market. The best part about the AMS ALPHA 6 Turbo Kit is that it is fully compatible with the high quality AMS 3″ Charge Pipe you already have installed so there is no need to buy a charge pipe twice like with the competition.

Hand Fabricated Tubular Exhaust Manifold and 3.5″ Downpipe


The new AMS Performance A90 2020 Toyota GR Supra ALPHA 6 GTX3076 GEN II Turbo Kit features 1.5″ ID 304L stainless steel schedule 10 piping hand fabricated to create the ultimate in exhaust flow. Incorporated into the manifold and turbine housing is a v-band connection for an easier install and leak-free operation. Additionally, because we have developed this kit as an internally gated system, there is no additional weight and flow disturbance you would find with an external wastegate design.

Our AMS SnailWorks© Engineering Team designed a downpipe that tapers from 3.5″ down to the factory exhaust joint which helps eliminate excessive back pressure. This tig welded 3.5″ stainless steel downpipe features a v-band connection, a 3.5″ flex section with smoothed internal liner, a GESI G-SPORT EPA compliant catalytic converter, and a factory style 80mm slip joint. This allows for a perfect bolt-in solution to your existing exhaust system, and the flex joint allows for natural engine movement to help prevent broken welds or exhaust hangers.

The Garrett© GTX-Series Turbo


The Garrett© GTX-Series turbos are a tried and true performance turbocharger lineup from Garrett©, with excellent horsepower output and great spool time. The new GTX3076R ALPHA 6 turbo kit is over 600 whp capable while still having excellent boost response and that world renowned Garrett© reliability! GTX GEN II compressor wheels were designed using proprietary Garrett Motion computer simulation technology focusing on CFD analysis to optimize the wheel design to reach maximum efficiency and mass flow for each turbocharger. Each GTX GEN II turbocharger can create more air mass flow, offering enthusiasts a wider range of power output when tuning the vehicle. The 8mm dual ceramic ball bearing cartridge provides optimal turbo response and reliability through its reduction in shaft motion.

To further improve power output, these Garrett© GTX3076 Gen II turbos use a 4″ inlet and 2″ discharge compressor cover. This cover allows for greater airflow compared to a 3 inch cover found on many smaller turbo systems. By implementing race-proven Garrett© turbos we have successfully delivered you more horsepower throughout the entire powerband! Our team has even gone the extra mile and pre-installed the oil and water lines to the CHRA as well as clocked the compressor cover to save you installation time and effort.

Kit Includes


 

  • GTX3076R Gen II Garrett© Turbocharger
  • TiAL Internal Wastegate Exhaust Housing with 3.5″ V-Band Discharge
  • AMS Performance Exhaust Manifold w/ 1.5″ Primaries
  • AMS Performance CNC Billet Aluminum Wastegate Rod Adapter
  • AMS Performance Powder Coated 4″ Aluminum Intake Piping w/ Sensor Bung
  • AMS Performance Dry Media Air Filter
  • AMS Performance Tig Welded 3.5″ 304L Stainless Steel Downpipe w/ GESI Cat
  • AMS Performance CNC Billet Aluminum Oil And Water Port AN Adapter Fittings
  • AMS Performance Ancillary Components, Including all Hardware, Lines, and Couplers

Applications


  • 2020 Toyota GR Supra – w/ B58 3.0L Turbo Engine (2 Port)

Notes



Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 18309696291

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4.7 ★★★★★
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Doc
West Palm Beach, US
★★★★★ 5
Great price great shoe
Size: 12, Color: Burgundy Polished Full Grain
Excellent shoe. Tried the Sebago penny loafer and the sizing was ridiculous. These J and M are sized perfectly. I’ve had them before and they wear like iron. Very comfortable right out of the box.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
R
Verified Purchase
roger mendes
Alexandria, US
★★★★★ 5
One of the best shoes
Size: 9.5, Color: Black Polished Full Grain
Outstanding. Fashionable, most comfortable and good construction. No sines of use after quite some time. Highly recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2026
X
Verified Purchase
xyz
Natrona Heights, US
★★★★★ 4
Quality shoe but with a slight squeak.
Size: 10 Wide, Color: Burgundy Polished Full Grain
Nice shoes with the classic Penny Loafer design. Fit was better than another brand I tried. Only reason not 5 starts is disappointment due to a slight squeak at times when walking.
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Reviewed in the United States on August 11, 2025
S
Verified Purchase
Steven D
Los Angeles, US
★★★★★ 5
Exact item ordered, quick delivery
Size: 9.5, Color: Black Polished Full Grain
I ordered these black Cole Haan penny loafers for casual wear with jeans, khakies, and even business casual with slacks and a jacket. They've always worked perfectly for these uses. The Cole Haan version is the most versatile and still meets my sophisticated look criteria. I wear a 9 1/2 M with almost all other shoes. I have found Cole Haan to run slightly wider and slightly shorter. This fit will work with thin and no socks and a little loose in width. . I'd likely order a 10 N next time. I tend to forget this but it runs consistent with me for Cole Haan. 5 stars for the shoe and service. My bad on the slightly off fit.
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Reviewed in the United States on January 8, 2025
H
Verified Purchase
Hugh62
Natrona Heights, US
★★★★★ 1
Poor quality control - maybe outlet store leftovers
Size: 11.5, Color: Burgundy Polished Full Grain
The two shoes were not the same size. They were both labeled 11 1/2 but one shoe was larger than the other and the fit was poor. I returned the first pair and ordered a replacement. This time the shoes were close to the same size but too loose and the left one has sewing issues. I've bought Johnston & Murphy for years because of the quality. These were to replace an existing pair of burgundy penny loafers that have finally worn out (even after several heal/sole replacements). That is the expected quality. I suspect Nashville Shoe Warehouse may be handling shoes that didn't measure up for the quality; more like an outlet mall than getting the J&M quality I've come to expect. Update: went to Johnston & Murphy site to buy "direct" from the manufacturer. There were several recent reviews where the shoes were long and didn't fit properly. Genesco - please step up the manufacture / crafting of these classic shoes to the level of quality they used to have.
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Reviewed in the United States on July 21, 2025

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