Quote:
Originally Posted by mr_240sx
im running my sr20det with an apexi downpipe and apex'i n1 cat-back with no cat! its not any louder then the ka24 with a cat!
PS: ive had some people telling me that when they were following me that when i would shift, there would be a blue flame shoot out from the exhaust about 3 inches out !!! 
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if you have no cat and nothing replacing it, you're running an open header, which means the rest of your piping, supposedly after the cat, is useless. i've driven to the exhaust shop once with an open header... it really is super hekka duper loud.
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