Quote:
Originally Posted by Spilner521
That hollowed cat is hurting you more than helping. The exhaust travels through the exhaust pipe and then all of a sudden flow's into a huge chamber and then back into the pipe. It's causing a lot of turbulence and stagnation. Put a high flow cat on it, or if you absolutely don't want a cat for whatever reason, cut out the cat and put a 2.5" pipe in it's place.
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Its just for when they inspect it... its a 2.5 piping inside the cat.. I wish I could take pics of it for yawl its pretty bad ass