Cat and Dual question
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Cat and Dual question
Aight i'm getting ready to do my exaust I'll most likley do RB headers but my question is I'm in SC so no emistions law and I'm wondering if i can just get rid of all my cats and just run strait the the mufflers and if it will benifit me me or hurt me.. And if so should I go true duals or 2into one headers.. 86na thanks
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do you really need a presilencer? i mean of course it'll be pretty loud, but if you have a normal catback (not something like n1's) and just put in straight pipe instead of the presilencer, it wont be too bad... well it wouldnt be too bad for me, its all opinion
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i keep wondering about this..
i thought it was the s5's that needed the pipe hooked up for the aux ports to open, but the s4's didnt... is that true? cuz i had a presilencer on with no piping hooked up to the air pump, but i didnt notice a very big difference in power after hooking it back up, so does that mean my ports were wired open? how do i check that?
i thought it was the s5's that needed the pipe hooked up for the aux ports to open, but the s4's didnt... is that true? cuz i had a presilencer on with no piping hooked up to the air pump, but i didnt notice a very big difference in power after hooking it back up, so does that mean my ports were wired open? how do i check that?
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Originally posted by 1987RX7guy
S4's use backpressure to open up the ports S5's use the air pump.
S4's use backpressure to open up the ports S5's use the air pump.
thanx for the help
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