3" or 2 1/2" exhaust?
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3" or 2 1/2" exhaust?
The 79 RX7 that i just bought has stock exhaust,but is being shipped with a car full of "goodies".Im getting a header and i think its a pacesetter.I have to weld it to the existing exhaust,but i am wonderring since i have to do that i should go ahead and do my exhaust.Question is what size to go with.My upgrades as of now are intake and Delleots card setup.I love the sound these rotarys make,just dont know if 3" is to big or would it be just right?
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Unless you have some wild peripheral port race car, go with a 2.5 inch exhaust on your non-turbo rotary, whatever engine you're running. Even DefinedAutoworks got 216rwhp out of their streetported non-turbo 13B-RE with a 2.5 inch exhaust.
Proof: https://www.rx7club.com/naturally-aspirated-performance-forum-220/216rwhp-streetport-13bre-sure-did-take-while-801325/
Proof: https://www.rx7club.com/naturally-aspirated-performance-forum-220/216rwhp-streetport-13bre-sure-did-take-while-801325/
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