The Injen Performance Cat-Back Exhaust System for the 2015-2021 Subaru WRX and WRX STI was designed from the ground up to compliment the aggressive styling and blistering performance of these sporty sedans. Our custom dual muffler design hones the tone of the engine into an ear-pleasing symphony. Purposefully delivering a crisp, clean, deep rumble at idle and an aggressive roar when you're pushing the limits. Manufactured from only the highest grade 304 stainless-steel, from the flanges to quad titanium look tips, for the highest level of tensile strength and rust resistance. The premium polished finish on the mufflers is sure to impress anyone curious enough to peek at the undercarriage and the burnt titanium look exhaust tips offer superb aesthetics that perfectly compliment the sound of the system itself.

• This part is not an emissions-related part and therefore can be used on Emission Controlled Vehicles.
• Custom investment cast Y-Pipe equalizes flow for improved performance and sound
• Dyno Proven power increase of 13 HP and 11 Lb.-Ft. of torque at the wheels
• Dual Oval, straight-through mufflers for exceptional sound and performance
• Exhaust Tips are bolt-on and allow for a staggered or straight install
• Hand Crafted and TIG Welded to Perfection for Strength and Durability
• Stainless Steel Investment Cast Flanges for a Fast and Easy Install
• Beautiful V-Band clamps used for a simple, leak-free installation
• Performance Stepped Pipe design utilizing 76MM and 60MM piping
• Manufactured from Mandrel-Bent 304 Stainless Steel
• Show Quality Embossed Stainless-Steel Muffler
• Premium Stainless-Steel Hardware and Hangers
• 3.250? Burnt Titanium look, Quad-Tip design
• Designed and Manufactured in Pomona, CA
• Emissions:

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