SPELAB Ford F-150 Cat-Back Exhaust System A cat-back exhaust system for a Ford F-150 is an aftermarket upgrade that replaces the exhaust components located after the catalytic converter. This exhaust system includes the downpipe Exhaust , exhaust header and Exhaust Manifold .The primary purpose of a cat-back exhaust system is to improve the performance, sound, and appearance of the exhaust system on your F-150. SPELAB exhaust systems are made with a fully polished surface, CNC machined flanges and mandrel bends. It's aggressive styling, and deep, strong tone are just part of the MR exhaust system characteristics. It also serves to improve horsepower, torque and overall performance with its straight-through design. Finished with a tip that is designed to increase the scavenging effect and achieve maximum performance, while adding a perfect match on exterior styling as well. It's really easy and convenient to use: direct bolt-on, no modification needed.
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