Which exhaust will make the most power?
the duals would be a bit deeper sounding since you have a h-pipe. but the y merge deal would be lighter weight.
as far as loudness..i would venture to say it would be close to the same.
Why do you want to get rid of the duals?
68bird- How did you get rasp from this? Were you using the merge thats linked in the OP? If not im pretty sure thats were you got your rasp from.
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What does power level have to do with Duals vs Y pipe?
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Neither is restricting flow because of shear flow thru the straight pipe. Its the merge that typically makes or breaks the flow on our cars. If you get a GOOD merge on either it flow properly but more importantly be a good inductor for the bank that is not firing. Otherwise.... we wouldnt even bother running the crossover pipe.
Im going with the Y pipe for a couple of reasons. The flowmaster merge i think is one of the best on the market. Its cheaper and lighter for my application.
The biggest thing is to not have the merge meet with a harsh angle so that the air is smacking into each other. you want one that "blends" the pips together for lack of a better word.



Knew there was a reason why Math was important...lol