View Poll Results: 3'' y pipe or 2 1/2'' x pipe ??
3'' y pipe
5
45.45%
2 1/2'' x pipe
6
54.55%
Voters: 11. You may not vote on this poll
3'' y-pipe or 2 1/2'' x-pipe
A 3in. single exhaust system assuming no muffler can support a motor with up to ~370hp with zero loss. A dual 2.5in. system assuming no mufflers can support a motor with up to ~513hp with zero loss. I'd say 2.5 duals for the win.
well i have a y pipe right now with a bullet dumped before the rear end...and a friend of mine is selling me his 2 1/2'' x-pipe really cheap....i guess x pipe it is 
thanks guys.
should be putting it on today
thanks guys.should be putting it on today
I am gonna get a 3" true dual system by the end of this summer, like said above the dual system will out flow a y-pipe big time. you'd have to get some really big pipes to start flowing the same numbers as a 2.5 inch x=pipe.
good luck man
good luck man
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There was a thread on here a while back talking about a 500rwhp heads and cam LS1 build. It gave all the details about the build including how to build a proper y-pipe. After reading that thread and learning about a proper y merge, I feel there is no reason at all to go with an x pipe or any sort of true duals.
Just run long tubes into a custom made y-pipe using the flowmaster merge collector (dual 3" into single 4") and either a 3 or 4 inch cutout and you will have all the exhaust flow you will ever need.
Just run long tubes into a custom made y-pipe using the flowmaster merge collector (dual 3" into single 4") and either a 3 or 4 inch cutout and you will have all the exhaust flow you will ever need.
There was a thread on here a while back talking about a 500rwhp heads and cam LS1 build. It gave all the details about the build including how to build a proper y-pipe. After reading that thread and learning about a proper y merge, I feel there is no reason at all to go with an x pipe or any sort of true duals.
Just run long tubes into a custom made y-pipe using the flowmaster merge collector (dual 3" into single 4") and either a 3 or 4 inch cutout and you will have all the exhaust flow you will ever need.
Just run long tubes into a custom made y-pipe using the flowmaster merge collector (dual 3" into single 4") and either a 3 or 4 inch cutout and you will have all the exhaust flow you will ever need.
its all about cross sectional area, yea a 4in pipe is big, but will not come close to flowing as much as two 2.5in pipes, let alone two 3in pipes
plus I bet it would cost as much to fab up a true dual set up as the 3in y-pipe into a 4in I-pipe
