Give your 2011-2014 5.0L Mustang GT an aggressive sound, improved exhaust flow, and more power potential with Kooks' Stainless Steel GREEN Catted 3" x 2-3/4" X-Pipe. This X-Pipe is designed to replace your restrictive factory unit for improved exhaust flow while retaining EPA emissions compliance through Kooks' GREEN Cats. While this unit is catted, the GREEN Cats are suitable for forced induction and rated up to 700 rwhp per pair; perfect for a blower, centrifugal, or simply turning up your factory power adder. With the X-Pipe design, you'll also get that signature and aggressive Mustang sound letting others know you're packing some performance under the hood. This particular X-Pipe features a 3" inlet to 2-3/4" outlet to connect your Kooks Long Tube Headers to your factory exhaust system. With it's full Stainless Steel construction, this piece will not rust or corrode in extreme weather environments.
Kooks' GREEN Cats: Kooks’ GREEN catalytic converters are engineered as an EPA-certified solution that enhances exhaust flow while maintaining emissions compliance. Available in three variations, GREEN, Ultra-GREEN, and H.O. GREEN, each option is designed to match your vehicle’s power level and performance goals. The GREEN and Ultra-GREEN converters use a 400 CPSI high-flow substrate, similar to OEM catalytic converters in emissions control, but optimized for improved flow and rated for forced-induction applications. The standard GREEN converters are rated for up to 375 hp per cat (750 hp per pair), while the Ultra-GREEN version supports up to 425 hp per cat (850 hp per pair). For high-output builds, the H.O. GREEN converters step up to a 300 CPSI high-flow substrate, allowing even greater exhaust efficiency and supporting up to 500 hp per cat (1,000 hp per pair). Another key advantage of Kooks’ GREEN cats is their warranty coverage for factory forced-induction vehicles. On applications such as the supercharged GT500, GREEN cats include a limited 2-year warranty against defects or premature failure; coverage not offered on Kooks’ standard non-GREEN high-flow cats installed on these vehicles.
Product Benefits:
- 3" inlet to 2-3/4" outlet
- Connects your Kooks Long Tube Headers to your factory exhaust
- Gives your Mustang an aggressive sound
- Increases exhaust flow for more power potential
- Uses Kooks GREEN Cats rated for up to 375hp each (700hp total)
- Rated for forced induction
- Full T304 stainless steel construction
About Kooks: Family-owned since 1962, Kooks continues to push the boundaries of header and exhaust manufacturing for a wide range of applications. From the street to the drag strip and even the circle track, Kooks delivers premium stainless steel headers, downpipes, X- and H-pipes, connection kits, and full exhaust systems that add power with an aggressive sound to match. Committed to engineering excellence, every Kooks product undergoes rigorous dyno and real-world testing to ensure superior fitment, performance, and sound quality. If you're looking for the best exhaust components in the industry for your Mustang, Explorer, F-150, or other Ford vehicle, look no further than Kooks.
Note: Fits Mustangs w/ Kooks Long Tube Headers only. 2-3/4" outlet connects to factory exhaust using your OEM clamps. Most of Kooks' products are built to order with a typical lead time of 6-8 weeks, some products may take up to 12 weeks. Not guaranteed to prevent CEL on all vehicles, O2 spacers may be needed.
Warning: Not approved for sale in California or states that require a California E.O. #. This part has been designed and is intended for off-road application only. Installation of this part on a vehicle that is driven on public roads may violate U.S. and Canadian laws and regulations. Federal and several state and provincial laws prohibit the removal, modification or rendering inoperative of any part that affects emissions or safety on motor vehicles used on public streets or highways. Steeda Autosports assumes no liability for any violations arising out of any federal, state or provincial emissions or safety requirements on motor vehicles arising out of the customer's modifications and/or use of Steeda products. It is the responsibility of the customer to determine if their modified vehicle complies with applicable laws.
WARNING: California Residents: Cancer and Reproductive Harm;
www.p65warnings.ca.gov
- Trim:
- GT
- Vehicle Fitment:
- 2011, 2012, 2013, 2014
