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Straight Pipes S5

Old 11-24-18, 04:17 PM
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Straight Pipes S5

Yo hows is it going? I got a question about straights pipes and have done some extensive research on the forums but havent gotten a proper answer. So I hear if you do straight pipes you have to worry about two ports or something of that nature either the s5 or s4 have them. What I really just want to know can I go to an exhaust shop, cut out my resonators and cats if I have any with out having to do any modifications other than welding in new tubing to replace them. I plan on keeping my magnaflow mufflers. Thank you in advance!!
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Old 11-24-18, 08:34 PM
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If you have a S5, you can do anything you want to the exhaust because the air pump- assuming it's in place and functional- powers your auxiliary ports.
If you have a S4, these ports run off exhaust backpressure.
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Old 11-24-18, 09:56 PM
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Originally Posted by clokker View Post
If you have a S5, you can do anything you want to the exhaust because the air pump- assuming it's in place and functional- powers your auxiliary ports.
If you have a S4, these ports run off exhaust backpressure.
thank you tons!!!
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Old 11-25-18, 02:28 PM
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clokker is correct about the auxiliary ports, but I would advise against just a straight pipe. It will be loud. It might not be as bad since you're keeping your stock exhaust manifold but I think it's a must with a header. I would spend the extra money and have this welded in. Universal Presilencer, 2.5-inch ID for RX7 1986-1992 - Racing Beat
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Old 11-28-18, 03:41 PM
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Straight piped RX7s are hilariously loud. You may regret it FYI. You could try it, but you will probably want some quality steel packed silencers and mufflers from Racing Beat.
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