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Subaru WRX/STI Cat-Back Exhaust, 2015+

Subaru WRX/STI Cat-Back Exhaust, 2015+
Subaru WRX/STI Cat-Back Exhaust, 2015+
Engineering
Engineering
Engineering
Engineering
Engineering
Engineering
Engineering
Installation
Installation
Installation
Installation
Installation
£1,058.40 (Incl. VAT)
Installation Difficulty

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  • Direct fit for the 2015+ Subaru WRX/STI
  • Dyno-proven maximum gains of up to 9 whp and 8 wtq and peak gains of up to 4 whp and 3 wtq using 93 octane fuel while maintaining safe AFRs on the stock tune (2015 WRX w/ CVT)
  • Extremely aggressive turbo and exhaust tone under acceleration and boost
  • Mates with the Mishimoto, stock, or most aftermarket downpipes
  • Installs in under an hour
  • Designed with oval mufflers to prevent highway drone
  • Quad 3.5" staggered double wall, polished tips
  • Full 304 stainless steel mandrel-bent construction
  • 3" to 2.25" exhaust split helps maintain proper exhaust velocity
  • TIG-welded to perfection
  • Mishimoto Lifetime Warranty

Here at Mishimoto we've decided to expand our line of 2015 WRX parts. Mishimoto is proud to release the 2015+ Subaru WRX/STI cat-back exhaust. One of the biggest complaints 2015 WRX owners have is that the stock 2015 WRX exhaust systems lack an aggressive tone. By installing the Mishimoto 2015 WRX cat-back exhaust allows the entire system to breathe easier, providing horsepower, torque, and a rich exhaust tone.

After comparing many different muffler sizes and designs, Mishimoto engineers chose oval mufflers to help prevent highway drone but still provide an aggressive exhaust tone for your 2015 WRX. During dyno pulls with the 2015 CVT WRX, Mishimoto saw gains of up to 9 whp and 8 wtq using 93 octane fuel while maintaining safe AFRs on a stock tune (see additional images for dyno chart). This 2015 WRX exhaust installs in under one hour and features quad 3.5" staggered, double wall polished tips. The Mishimoto 2015 WRX cat-back exhaust provides an extremely aggressive turbo and exhaust tone under acceleration and boost, giving you that sweet tone you've been looking for!

The Mishimoto engineers designed this WRX and STI cat-back exhaust as a four-piece design, comprised of precision TIG-welded, 304 stainless steel. This allows a smooth exhaust flow from the 3.0" 2-bolt exhaust flange all the way through the 2.25" Y-section. To top it off, this 2015 WRX exhaust includes two 2.25" V-band clamps, a 3" exhaust-band clamp, a new 3" 2-bolt flange gasket, and all stainless steel hardware, so you don’t have to worry about rusty hardware!

For 2015 WRX or STI owners looking to get the most out of their WRX, this 2015 WRX cat-back exhaust mates perfectly with the Mishimoto Subaru WRX Performance Downpipe. The Mishimoto Subaru WRX Cat-Back Exhaust is proudly made in the USA and, like all our 2015 WRX parts, comes with the Mishimoto Lifetime Warranty.

Mishimoto Automotive (“Mishimoto”) warrants their products under this lifetime limited warranty policy (“Warranty Policy”). This Warranty Policy applies solely to: (i) Mishimoto Products purchased directly from Mishimoto or Mishimoto authorised dealers (each a “Mishimoto Product” and collectively, the “Mishimoto Products”) and (ii) the original purchaser of such Mishimoto Product (“Purchaser”). This Warranty Policy is non-transferable and all claims under this Warranty Policy must be accompanied by the original sales receipt. The terms and conditions of this Warranty Policy are subject to change by Mishimoto at any time without notice.

For our complete warranty policy, please click here.

EVEN MORE COOL ITEMS

TECH SPECS

Purchase Includes (1) Stainless Steel Mid-Pipe w/ 2-Bolt Flange
(1) Stainless Steel Mid-Pipe to Y-Section
(2) Stainless Steel Mufflers w/ Quad 3.5" Staggered Double Wall Tips, Polished
(2) 2.25" V-Band Clamps
(1) 3" Exhaust-Band Clamp
(1) 2-Bolt Flange Gasket
(2) 3/8"-16, 1-1/2" Hex Bolts, Stainless Steel
(2) 3/8"-16 Serrated Flange Hex Nuts, Stainless Steel
(2) M10 Washers, Stainless Steel
Mishimoto Lifetime Warranty

Note This product has been designed to fit both manual and CVT transmission vehicles.

Mishimoto does not recommend installing this cat-back exhaust and the Mishimoto Performance Air Intake with the stock ECU programming. It is recommended that the customer is able to retune the vehicle’s ECU after installing the cat-back exhaust and the intake. Power gains will vary depending on the type of ECU tune that is applied to the vehicle.

Fits 2015+ Subaru WRX, 2015+ Subaru STI

Engine Codes FA20DIT, EJ257

Chassis Codes VA, GH

Weight 42

Diameter 3.0" from 2.bolt flange to y-section 2.25" y-section to mufflers

Flange Material 304 Stainless Steel

Pipe Material 304 Stainless Steel

Engineering Blog

Make Your Presence Known. The Mishimoto 2015 WRX Cat-Back Exhaust! Part 3: Road-Test Video Footage

Make Your Presence Known. The Mishimoto 2015 WRX Cat-Back Exhaust! Part 3: Road-Test Video Footage

John Marsteller

January 23, 2015

The post Make Your Presence Known. The Mishimoto 2015 WRX Cat-Back Exhaust! Part 3: Road-Test Video Footage appeared first on Mishimoto Engineering Blog.

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Make your presence known. The Mishimoto 2015 WRX Cat-Back Exhaust! Part 2: Finalizing the Prototype

Make your presence known. The Mishimoto 2015 WRX Cat-Back Exhaust! Part 2: Finalizing the Prototype

John Marsteller

January 06, 2015

Interested in purchasing our 2015 WRX cat-back exhaust? Check out more details on our product page linked below! Subaru WRX/STi Cat-Back Exhaust Prototype Fabrication With the front section of our exhaust complete, we needed to address the Y-section as well as the pipes routing to the mufflers. We decided to go with 2 1/4” piping … Continue reading Make your presence known. The Mishimoto 2015 WRX Cat-Back Exhaust! Part 2: Finalizing the Prototype → The post Make your presence known. The Mishimoto 2015 WRX Cat-Back Exhaust! Part 2: Finalizing the...

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Make your presence known. The Mishimoto 2015 WRX Cat-Back Exhaust! Part 1: Initial Fabrication

Make your presence known. The Mishimoto 2015 WRX Cat-Back Exhaust! Part 1: Initial Fabrication

John Marsteller

December 22, 2014

Interested in purchasing our 2015 WRX cat-back exhaust? Check out more details on our product page linked below! Subaru WRX/STi Cat-Back Exhaust An aftermarket exhaust is an easy way to distinguish your car from the slew of vehicles roaming the streets. Not only does it enhance aesthetics, but the amplified noise is also a dead … Continue reading Make your presence known. The Mishimoto 2015 WRX Cat-Back Exhaust! Part 1: Initial Fabrication → The post Make your presence known. The Mishimoto 2015 WRX Cat-Back Exhaust! Part 1: Initial Fabrication...

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