Add 'Exhaust Systems'

Exhaust-Systems.md

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+Cat-back exhaust system kits come standard with tailpipes, a performance muffler and exhaust tips. The inclusion of our wider, mandrel-bent tailpipes means cat-back exhausts are your go-to for increasing your performance gains along with boosting your sound. While horsepower and torque gains vary from vehicle to vehicle, you can expect anywhere from a percent gain in horsepower and torque after installing a cat-back exhaust system.
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+Considering cat-back exhausts replace more restrictions, they typically offer increased performance and noise compared to axle-back systems