dumb question
#6
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Join Date: Sep 2007
Location: Wisconsin
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Is there a option if I have to keep the cats?
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#9
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Join Date: Sep 2006
Location: Norman, OKLAHOMA
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Yes you will get improved power the cats are somewhat restrictive, but if you live in a city or state that does smog testing you will get a hefty fine. I love Oklahoma we don't even have vehicle inspections anymore! and after going catless you can get a tuner to delete the rear O2's from the program and then you will have no check engine light. good to go!
#12
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to quote JRP from the exhasut sticky:
DO NOT invest in a new y-pipe unless you plan to stick with shorties/stock manifolds, and even at that it's barely worth it since you'll gain practically nothing by a new y on stock manifolds. If you buy a new y for stock manifolds/shorties you'll need to replace the one you just bought if you add lt's or mids in hte future