Exhaust› Exhaust Pipes, Systems and Components

Cobb Tuning

Stainless Steel Cat-Back Exhaust

$1,565.00

SKU: cobb515160

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The COBB Tuning Stainless Steel Cat-Back Exhaust is a direct bolt-on system designed for the 2011-2021 GV and VA Subaru WRX/STI Sedan.

The mid-pipe uses 3" tubing and includes a flex section for compliance, leading to a 3" cast flange that connects to the y-pipe.

The y-pipe incorporates a cast split section for improved durability, dividing the flow into twin 2.5" tubes. Muffler sections, also connected via cast flanges, house bespoke COBB-designed mufflers with 2.5" inlets and dual 2.5" outlets that accept slip-on 3.5" dual wall, slash-cut tips. Multi-layer steel (MLS) gaskets are included for all connections. The exhaust note is described as crisp and noticeable without unwanted cabin drone.
Show original supplier description
The COBB Tuning Stainless Steel Cat-Back Exhaust is engineered as a direct bolt-on upgrade for the 2011-2021 GV and VA Subaru WRX/STI Sedan models. Construction is a key highlight, with the entire system crafted from durable 304 stainless steel and meticulously TIG welded for both aesthetic appeal and longevity. The 3" stainless steel mid-pipe incorporates a flex section for system compliance and leads to another 3" cast flange that mates with the y-pipe. The y-pipe itself features a robust cast split section, an advancement over welded designs, which divides the exhaust flow into twin 2.5" tubes. The bespoke COBB-designed mufflers are central to the system's performance and sound characteristics, featuring a 2.5" single inlet and dual 2.5" outlets that accommodate optional slip-on 3.5" dual wall, slash-cut tips with laser-etched COBB logos. Installation is facilitated by included multi-layer steel (MLS) gaskets for all connections. COBB offers optional Blued or Brushed Titanium Exhaust tips to further customize the vehicle's appearance. This cat-back exhaust is not an emissions-related part and can be used on emission-controlled vehicles.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandCobb Tuning
Part Numbercobb515160
CategoryExhaust
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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