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duel pipe size

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Old 11-15-2003, 10:12 PM
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Default duel pipe size

If I wanted to go over the axle with duels I read that it would have to be 2 1/2" not 3". Would I see a worthwhile gain going with 3" and dump before the axle? The reason i want to go over the axle is because I drive my car every day its not snowing. I don't like the idea of having the exhaust coming out under the car.I don't plan on doing heads, just the hotcam and boltons. I know it will probly be a pita but I'll try to make the exhaust myself too.

I'm going to get pacesetters so the collecter is 3". Should I go 3" through the x-pipe and 2 1/2" after or just 2 1/2" right from the headers? Another reason to go with 2 1/2 is then I can use the stainless works chambered mufflers. THey don't offer them in 3" , but I can get 2 1/2". The mufflers are 24" long so I'll probly have them between the x-pipe and the axle. Would cutouts off each header help if I go with chambered mufflers while at the track?

Another reason to go 2 1/2" is that my car is already lowered 1 1/2".
Old 11-15-2003, 11:48 PM
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You could always do a 3inch to 2.5 after the x pipe and use electric cutouts before or just after the x before it goes to 2.5 this would solve your issue.
Old 11-17-2003, 08:29 PM
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2.5" duals are plenty big enough to handle even more than you are planning on doing. And yes, go 3" to the X and 2.5" after.
Old 11-17-2003, 08:40 PM
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2.5" for your application and plans (keep stock heads) should be plenty.




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