strait pipe again...
Going from 2.5" to 2" exhaust will give you crackle, but thats not a very healthy thing to do to exhaust. You realize if you scraped your OEM cats you could get a minimum of about $70 each where as the hi-flow cats varie $65 - $75 each. Its small change.
a WHOLE lot better
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do you mean keep stock cats on then have the system stock up to a y pipe instead of a muffler then 2 2" tail pipes?




And thanks for the compliment man