no, it's not. when you gut your stock one you're screwing up the back pressure so it doesn't flow like it used to. you might get better top-end power but you mess up your low end and mid-range.
get the free summit sport compact magazine and order the catco cat. its straight through design and is also 50 state smog legal GREAT performance and cheap.....well 100 bucks and shipping so not too bad
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