Hyper-aggressive sound and new look for your truck Feature Borla ATAK Multi-Core Muffler Produces a huge and aggressive roar Dual-rear exit tailpipes with polished tips 304 Stainless Steel Construction Drop-in replacement for stock cat-back Fits 145" wheelbase. Extension pipes needed for 157" and 163" wheelbases Comes with hardware and instructions Huge New Roar For Your 2015-2018 F150 The Borla ATAK Cat-Back Exhaust is Borla's loudest, proudest, and most aggressive system they have for the EcoBoost, V6 and V8 F150 trucks. This mean exhaust kit gives your powerful new F150 truck one of the most aggressive sounds you'll find in a high-performance exhaust system on the market while adding a nice increase in horsepower and throttle response as well. The whole neighborhood will know you're coming when you drive down the street with a Borla ATAK Cat-Back Exhaust System installed. On top of the amazing new sound, the Borla ATAK Cat-Back Exhaust System reduces back-pressure with it's mandrel-bent tubing and high-flow multi-core muffler to give your truck some extra horsepower and torque. The Borla ATAK system is one of the best ways to add a race car growl to your truck in practically no time at all. Hyper-Aggressive Multi-Core Design The ATAK F150 Cat-Back Exhaust kit gets it's immense sound and vicious roar from it's aggressively-designed mufflers. Each muffler has a multi-core internal structure similar to those found in professional racing trucks. The unique design allows for excellent exhaust flow and acts as a resonator to produce an extremely aggressive sound that's louder and deeper than their S-Type Cat-Back System and completely blows away their Touring Cat-Back exhaust kit when it comes to the sound level. Topping it all off is this kit's awesome split rear exit design with a 4" rolled, angle-cut tip with a polished finish that give your truck an impressive look on top of the great sound. High-Quality Design and Construction Every ATAK F150 Cat-Back Exhaust kit is manufactured with both quality and fitment in mind so that you don't have any hassles after the system arrives at your door. The entire system is built using high-quality 300-series stainless steel that's almost completely resistant to corrosion and discoloration making it effective in just about any climate. These kits are manufactured using computer-controlled CNC mandrel bending that ensures excellent fitment. This cat-back exhaust kit deletes your factory resonator for a more aggressive tone. Fitment: 2015-2018 Ford F150 2.7L & 3.5L EcoBoost V6 / 5.0L V8. Extended Cab, Standard Bed (78.8") Crew Cab Short Bed (67.0)(145" Wheel Base). Warranty Info: BORLA backs their ATAK exhaust systems with a Million-Mile Warranty. Wheelbase Fitment: this cat-back kit only fits F150s with 145" wheelbases out of the box. Borla's 157" Wheelbase Adapter Pipe or 163" Wheelbase Adapter Pipe will be required for longer wheelbase trucks. Trimming will be required for 141" and 126" wheelbase models.