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Forum namePerformance/Engine
Topic subjectExhaust
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=56052
56052, Exhaust
Posted by ECLiPSE56, Jul-26-03 10:27 AM
Would a 3inch NON mandrel bent catback exhaust have similar airflow as a 2 1/2 Mandel bent exhaust?
56053, RE: Exhaust
Posted by FlyinEsi, Jul-26-03 11:09 AM
Probably close, but why go 3" non mandrel vs. 2 1/2 mandrel?? Why go bigger if it isn't worth it??
BTW: Sweet ass car man!


1/4 Mile: 17.4651 | 1/4 MPH: 76.69
2gnt.fullwormage.com/files/apexiexhaust/
56055, RE: Exhaust
Posted by ECLiPSE56, Jul-26-03 11:33 AM
Cuz i'm squeezin...there are no shops here that mandrel bend..and it's cheaper to make a bigger exhaust vs. mandrel bends.. well over here anyhow.. Thanks for the compiment btw.. :-)
56056, RE: Exhaust
Posted by MITSURACER, Jul-26-03 11:43 AM
you can purchase mandrel bend pipes from jc whitney. they have 3" 45 degree and 180 degree mandrel bends for like 20 a piece i think. two 45 's should get you all the way from the cat. there are only two turns i beleive. thats better than copping out for the 2.5 inch imo and will be cheaper than any catback system you buy.
56057, RE: Exhaust
Posted by Michael_97RS, Jul-26-03 12:09 PM
In the turns maybe the flow would be close, but the straight sections of 3" pipe are going to slow the exhaust gas velocity down and you'll loose low end.



15.9 @ 86.7mph

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56058, RE: Exhaust
Posted by MotoFool, Jul-26-03 12:11 PM
get under car figure out how many bends u need order them from jc whitney have them welded in

done deal mandrel 3"