my custom exhaust design...?
my custom exhaust design...? Ok, i am planing to do a full exhaust upgrade on my trans am with long tubes, ORY, and a catback. I am thinking of designing my own cat back because I would like to run a spintech super pro street muffler, a buddy of mine has them on his ls2 swapped impala ss and they sound awesome. They only come witn 1-inlet/1-outlet so I plan to add a y-pipe after the muffler to achieve the "dual" tailpipes. After about 3 different designs, here is a pic of the final design. Tell me what you guys think, any input is appreciated. thnaks
P.S. is any one on here running spintech pro streets or super pro streets?
P.S. is any one on here running spintech pro streets or super pro streets?
It's been done and works good but will not sound the same as if it had two pipes comming directly out and dumped. The pipe running behind the muffler has too much of a tight bend in it and it will quiet the exhaust down some. If you do it absolutely get mandel u bends for it. If you want to run spintech look at mufflex. They have a nice crossflow muffler set up with dual outlets or for ultimate flow you could get their single 4" system with a spintech, flowmaster, or magnatlow muffler and a single 4" dump.
It's been done and works good but will not sound the same as if it had two pipes comming directly out and dumped. The pipe running behind the muffler has too much of a tight bend in it and it will quiet the exhaust down some. If you do it absolutely get mandel u bends for it. If you want to run spintech look at mufflex. They have a nice crossflow muffler set up with dual outlets or for ultimate flow you could get their single 4" system with a spintech, flowmaster, or magnatlow muffler and a single 4" dump.
i seen the mufflex and they use the crossover/sportsman spintech series muffler which is one of spintech's quieter muffler, the pro streets and super pro streets are their aggresive muffler, thats why im thinking of going with this design. and yes, I plan to use mandrel bent all the way.
Joined: Aug 2007
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From: Turnin' Wrenches Infractions: 005
that exhaust looks way overcomplicated for what you are trying to accomplish. Put the spintech right after the Y, then run one pipe over the axle, then split it after the axle to each tailpipe. Much easier.
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i seen the mufflex and they use the crossover/sportsman spintech series muffler which is one of spintech's quieter muffler, the pro streets and super pro streets are their aggresive muffler, thats why im thinking of going with this design. and yes, I plan to use mandrel bent all the way.
The Spintech does flow good and sound mean though!
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