Exhaust decision

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Aug 19, 2004 | 08:37 PM

Fukui-San

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Joined: Aug 2004

Posts: 11

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From: CT

Exhaust decision

I have a 1988 turbo rx-7. I have the bonez turbo flow system consisting of a high-flow cat and a 2.5" downpipe. Should I go with 2.25" piping from the cat to the mufflers or 2.5"?

Aug 19, 2004 | 08:40 PM

Ryu

1991 Frankin7 ***RIP***

Joined: Sep 2003

Posts: 900

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From: Abbotsford, British Columbia, Canada

i believe that turbo's love to breath so go for the 2.5" piping.

Last edited by Ryu; Aug 19, 2004 at 08:45 PM.

Aug 19, 2004 | 08:48 PM

ddub

i am legendary

Joined: Sep 2003

Posts: 8,478

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From: Kirkland, WA

2.5" y-pipe splitting into two 2.25" pipes would be fine. Or a full 2.5" catback is fine too.

Aug 20, 2004 | 12:51 AM

YearsOfDecay

Locust of the apocalypse

Joined: Apr 2003

Posts: 2,553

Likes: 2

From: Directly above the center of the earth (York, PA)

don't use the 2.25 before the split... especially since you have a 2.5 inch down pipe... go with the 2.5 from the cat to the y-pipe!

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