Tomioka Racing (TR)  |  SKU: TR-TS1100

TR GTX2971 Ball-Bearing Twin Scroll Turbo Kit Stock Replacement for Subaru 02-07 WRX & 04-18 STI

Regular price $3,33000

Turbo Spring
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Genuine Parts

Now available for the brand new GTX2971 Twin Scroll Turbo, the TR Equal Length Exhaust Manifold with Up-Pipe and TR Twin Scroll High Flow Catless Downpipe! The perfect combination for a complete twin scroll turbocharged setup for your WRX or STi. Rated up to ~430whp, the twin scroll technology ensures spool speed that is night and day in comparison to single scroll turbos. Thought your turbo spooled fast before? Think again.

This twin scroll edition features a ball-bearing cartridge, billet compressor wheel , and 10cm2 housing. Thanks to the billet compressor wheel the overall weight of the wheel is lighter than competing turbochargers and allows for maximum airflow throughout the unit with the help of point milling on each blade. A unique wheel and blade design, featuring a 20% larger wheel with 17% longer blades than the factory turbocharger. In addition, the GTX2971 features a port and polished exhaust housing to minimize exhaust flow turbulence. All hardware is included with purchase.

Catered to the die-hard Subaru fans! The twin scroll turbo is an efficient way to replace or upgrade your current twin scroll set up on your Subaru. With the rarity of twin-scroll turbo applications, we have created yet another direct bolt-on system, this time for the 2002-2007 WRX and 2004-2018 STi. The GTX2971 is already an efficient turbo but now paired with a complete twin-scroll system, spool time is dramatically decreased!

The Twin Scroll High Flow Catless Downpipe features larger diameter piping with ported flanges for a quicker and faster exhaust air flow compared to the standard OEM downpipe. Each downpipe is constructed of SUS304 grade stainless steel that gives it shine and durability that will last for years to come. Installation is a snap! The downpipe will fit like your OEM downpipe and comes with all the necessary hardware and gaskets.

The Twin Scroll Equal Length Headers feature a lost wax finish with 3-1 connectors and a smooth inner surface for the best air flow. A stable & effective connection s made by the slip joint bracket and air leakage is avoided by the 3 bolt flange design up-pipe.

All in all the entire system will bolt together without any issues and make way for quick installation, having all components sit in their stock locations in the engine bay.

 

TR has partnered with Motul USA to offer a free 2L can of 300V 5W30 or 5W40 with any purchase of TR turbos! Choose your oil of choice in the options and we will include it in your order! 

Do you need more Motul 300v? Add some more HERE! 

 

Turbo Specifications:

Bearing Type:

Ball-Bearing

Flange Type:

Standard Subaru 5-Bolts

Billet Compressor Wheel: In: 54 mm
Ex: 72 mm

Turbine Wheel:

In: 60 mm
Ex: 57 mm

Turbine Housing:

10cm2

Actuator:

1.1 bar / 16 psi

Horsepower:

500 HP

 

Downpipe Specifications:

Material Stainless Steel SUS304
Pipe Thickness 0.25 Inch / 6.3mm
Flange Thickness 0.5 Inch / 12.5mm

 

Applications:
2002 - 2007 Subaru WRX
2004 - 2018 Subaru STi

Kit Contents:
Turbocharger (TR-TS1047)
Gaskets
Upgraded Billet Actuator
Oil Drain Pipe
Water Pipe
Twin scroll Downpipe (TR-ES1005)
Down pipe to Exhaust Gasket x1 
Down pipe to Exhaust Nuts & Bolts x2
Exhaust Manifold (TR-ES1002)
Up Pipe (TR-ES1002)
50' x 2" Exhaust Wrap
Motul 300V Competition 2L

 

*For Off-Road Use Only*

Shipping & Returns

Warranty

Limited Warranty

Tomioka Racing (TR) guarantees its products to be free from defects in material and workmanship for the original retail purchaser. The warranty period is one (1) year from the date of the original purchase unless otherwise noted. Specific warranty periods for certain products include:

  • Lightweight Batteries: Two (2) years.
  • Transmission Parts: Ninety (90) days.

This warranty applies only to products purchased directly from Tomioka Racing or an authorized dealer. Proof of purchase is required to process any warranty claim.

Return Policy

Products may be returned within 15 days from the date of delivery. Returns not due to Tomioka Racing's mistake will incur a 25% restocking fee. All returned items must be in new and unused condition, and shipping fees are non-refundable.

Warranty Exclusions

This warranty does not cover any product or component in the following situations:

  • The product has been used for competition or racing.
  • Misuse, abuse, improper maintenance, or neglect of the product.
  • Repairs attempted or performed by unauthorized individuals or facilities.
  • Damage caused by normal wear and tear or the product being a consumable.
  • Alterations or modifications made to the product.
  • The product has been involved in an accident.
  • Use of the product contrary to Tomioka Racing’s installation and usage guidelines.

Warranty Limitations

The warranty is limited to the repair or replacement of the defective product or part, at Tomioka Racing’s discretion. This coverage does not extend to:

  • Removal or reinstallation costs.
  • Any other vehicle components, systems, or consequential damages resulting from product failure.
  • Claims for a full system or kit when only a part or component is defective.

Tomioka Racing DISCLAIMS ANY AND ALL LIABILITY FOR IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO MERCHANTABILITY AND FITNESS FOR A SPECIFIC PURPOSE. Under no circumstances shall Tomioka Racing be liable for any incidental, indirect, specific, or consequential damages arising from the purchaser’s use of the product.

How to File a Warranty Claim

To ensure a seamless claim process, follow these steps:

  • Identify the Issue: Work with the Authorized Tomioka Racing Dealer to determine if the issue is caused by:An inspection fee will be charged for items found to be free from manufacturing defects.
  • Obtain a Return Merchandise Authorization (RMA) Number:
  • Prepare Documentation: Include the following with your returned item:
  • Ship the Product: Package the product securely using the original or equivalent packaging to prevent damage during transit. Tomioka Racing is not responsible for products returned without a clearly marked RMA number or return address.

Claim Review Process

Allow 6-8 weeks for inspection and determination of the warranty claim. If the product is deemed defective, Tomioka Racing will repair or replace it at no charge. For claims that do not qualify, the customer will be informed, and repair/replacement options may be offered at their expense.

Additional Notes

Products damaged during transit must be addressed with the carrier. Retain all original packaging to file claims with the carrier if necessary.

For questions about this warranty policy or to initiate a claim, contact us at support@tomiokaracing.com or call (302) 409-0668. Your satisfaction is our priority, and we are here to support you at every step of the way.

FAQs

Questions? Check out or full FAQs here.

Payment methods

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Shipping Notice

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Some oversized, heavy, or specialty items may incur additional shipping charges based on your delivery location. If this applies to your order, our team will contact you after checkout with the updated cost. Orders will not ship until additional charges are confirmed and paid.

TR GTX2971 Ball-Bearing Twin Scroll Turbo Kit Stock Replacement for Subaru 02-07 WRX & 04-18 STI

Tomioka Racing

Tomioka Racing was established in 2006 as a company that introduced compact and cost-effective race ramps for tuners and enthusiasts alike to raise their car at ease. The company was established by a group of enthusiasts from different parts of the world that also happens to be engineers, tuners and entrepreneurs to find the next ‘compact & cost effective’ performance products for the aftermarket industry. Following the success of the racing ramps, the company quickly saw the need for cost-effective, quick turn-around and factory-like fitment performance products. Tomioka expanded its product offerings to include performance AGM light-weight batteries, factory-replacement bolt-on turbochargers, power drive-trains, performance exhaust systems and fuel components. The group of staffs at Tomioka Racing works relentlessly with tuners and dealers to introduce high-quality performance products to the enthusiasts with unmatched customer service.

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