Why choose the ETS Twin Scroll Turbo Kit for VA over the single scroll kit?

The ETS Twin Scroll Turbo Kit for VA keeps exhaust pulses separated through a T4 twin scroll manifold and up-pipe, which helps a large turbo spool sooner and respond faster. The single scroll kit offers a wider turbo choice and a lower entry price for owners chasing peak power first.

Which turbochargers are offered?

ETS offers the Precision 6266, 6466 and 6870 in Gen 2 or NextGen form, or the kit without a turbo for an owner supplying a Precision T4 twin scroll unit. ETS can check other turbochargers on request, and BA will confirm availability before you order.

Does the kit include the intercooler?

No. The kit includes the 2.5 inch hot side pipe that runs under the intake manifold, but the front mount intercooler and its cold side piping are separate. ETS designed it to work with its STI rotated intercooler kit, which BA lists alongside.

Will it fit a right-hand-drive STI?

Possibly not. ETS designed this kit on a left-hand-drive car and notes that the steering rack on a right-hand-drive STI may prevent it from fitting. Owners of imported or right-hand-drive cars should ask BA before ordering so ETS can confirm.

Does the kit connect to my existing exhaust?

Yes. The 3.0 inch downpipe is built to connect to the factory catback, so the rear of the exhaust can stay as it is. Many owners later add an ETS 3.0 inch catback, which is designed for the VA chassis.

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Description

ETS T4 Twin Scroll Turbo Kit for VA Subaru WRX STI

ETS’s T4 Twin Scroll Turbo Kit for VA Subaru WRX STI divides the EJ257’s exhaust pulses through a large-runner twin scroll manifold and up-pipe, so a big Precision turbo spools sooner and answers the throttle more like a smaller one. It is ETS’s choice for an STI owner who wants a wide powerband from a 6266, 6466 or 6870 frame rather than peak numbers alone. It is the same hardware ETS runs on its own shop cars.

How It Fits Together

The turbo sits in the rotated position and feeds a 2.5-inch hot side pipe that runs under the intake manifold, matched to the ETS STI rotated intercooler piping. A 3.0-inch downpipe joins the factory catback, two wastegates vent through ETS dump tubes, and a 4.0-inch intake with a K&N filter completes the inlet side.

Features

T4 twin scroll manifold and up-pipe with large runners
Twin external wastegates with vent-to-atmosphere dump tubes
O2 bungs in the downpipe and manifold
5/8-inch oil drain and -4 oil feed line
Hand built in the USA

Specifications

Turbocharger options: Precision 6266, 6466 or 6870 in Gen 2 or NextGen, or no turbo
Turbine flange: T4 twin scroll
Downpipe: 3.0 in, joins the factory catback
Intake: 4.0 in with K&N filter
Hot side pipe: 2.5 in, under the intake manifold
Oil lines: 5/8 in drain, -4 feed

What’s Included

Turbocharger (unless No Turbo is chosen)
Twin scroll manifold and up-pipe
Wastegates (x2) with dump tubes
3.0-inch downpipe and 4.0-inch intake with filter
2.5-inch hot side intercooler pipe
Oil and water lines, gaskets, hardware and clamps

Applications

Subaru WRX STI: VA | 2015-2021 | 2.5L EJ257

Notes

Precision turbochargers ship with Precision wastegates
Designed on a left-hand-drive car and may not clear the steering rack on right-hand-drive vehicles
The intercooler and cold side piping are not included; the kit works with the ETS STI rotated intercooler setup, the ETS Front Mount Intercooler for VA Subaru WRX STI and ETS Rotated Piping Kit
A professional tune and fuel upgrades sized to the turbo are required
This part cannot be shipped to California addresses

Frequently Asked Questions

Why choose the ETS Twin Scroll Turbo Kit for VA over the single scroll kit? The ETS Twin Scroll Turbo Kit for VA keeps exhaust pulses separated through a T4 twin scroll manifold and up-pipe, which helps a large turbo spool sooner and respond faster. The single scroll kit offers a wider turbo choice and a lower entry price for owners chasing peak power first.
Which turbochargers are offered? ETS offers the Precision 6266, 6466 and 6870 in Gen 2 or NextGen form, or the kit without a turbo for an owner supplying a Precision T4 twin scroll unit. ETS can check other turbochargers on request, and BA will confirm availability before you order.
Does the kit include the intercooler? No. The kit includes the 2.5 inch hot side pipe that runs under the intake manifold, but the front mount intercooler and its cold side piping are separate. ETS designed it to work with its STI rotated intercooler kit, which BA lists alongside.
Will it fit a right-hand-drive STI? Possibly not. ETS designed this kit on a left-hand-drive car and notes that the steering rack on a right-hand-drive STI may prevent it from fitting. Owners of imported or right-hand-drive cars should ask BA before ordering so ETS can confirm.
Does the kit connect to my existing exhaust? Yes. The 3.0 inch downpipe is built to connect to the factory catback, so the rear of the exhaust can stay as it is. Many owners later add an ETS 3.0 inch catback, which is designed for the VA chassis.

About Extreme Turbo Systems

Extreme Turbo Systems designs and builds turbo kits, intercoolers, charge piping and exhaust systems at its facility in Ridgefield, Washington, and proves the hardware on its own drag cars. The ETS-G R35 GT-R set the GT-R drag record of 6.54 seconds in 2019 and held it for two years. The ETS Pro Mod GT-R, driven by owner JR Perrott, has run 5.94 seconds at 244 mph on twin Precision turbochargers, and the ETS C8 Corvette has run 8.64 seconds at 170 mph in the quarter mile and made 1,383 whp on the dyno with an ETS PT6870 turbo kit. ETS builds for the Subaru, Mitsubishi, Nissan GT-R, Toyota Supra, Ford, BMW, Corvette and Lamborghini platforms.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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ETS T4 Twin Scroll Turbo Kit for VA Subaru WRX STI

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ETS T4 Twin Scroll Turbo Kit for VA Subaru WRX STI

How It Fits Together

Features

Specifications

What’s Included

Applications

Notes

Frequently Asked Questions

About Extreme Turbo Systems

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