Having come from the import car scene, I was definitely use to louder exhausts and more horsepower. After I installed our B&B headers and SuperSprint mufflers, I wanted more noise and more power. SuperSprint offered us these catless race pipes to test out. Much like the factory pipes, these full stainless steel pipes were a direct replacement for your catted ones. They retain the factory O2 sensors as well. Because these are catless, your car may throw a check engine light, however this will not change the cars performance at all why they are on.
Once installed we took the car for a spin. At normal driving speeds under no exceleration, the car sounds normal, however as soon as you step into the throttle, the car rips loud like a GT Cup car on the track. For some, a bit loud, for racers, the right sound. There was a noticeable horsepower gain at the top level RPMs. This is a great modification of track guys. Daily drivers beware as this will definitely draw attention your way.
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