Hey guys,

I'm about to order the bends to make my down pipe on my turbo kit. And I've got a dilema. I can easily fit a 3.5" downpipe where it needs to go. But I think with a bunch of more work I might be able to fit a 4". Anybody have a clue as to how much HP this would net me. This would be using a T-76 ptrim 1.0 a/r and probably dumping the wastegate to the atmosphere. I should be running 7-15psi and I'm looking for 10's. Any input is appreciated. Thanks.

 

If all you want is 10's, then a 3" would work well enough.

 

ive seen turbo cars make 900rwhp with 3.5"

 

Thanks guys, I feel better with some sort of reality check. Time to order some parts.