Forced Induction Finished Builds

V1H · 01-09-2014, 05:15 PM

By "matching the down pipes to the exhaust" you mean matching the down pipes to the cats/TPs, right? I understand that after that there's still the X-pipe (true dual) or Y-pipe (single), after which comes the mid-pipe, ect.
I see many (catback) exhaust sold, starting from he mid-pipe onwards. That leaves the choice of X-/Y-pipe to me. And since the inlets of the Y-pipe will be smaller than the outlet, I do have to make sure the down-pipe-catalyser-combo mates to the Y-pipe inlet, but also the catback mating to the Y-pipe outlet, right? That is a lot of mixing and matching to deal with, no?
So which sections should ideally be 3"? all of them regardless of whether two pipes merge into one (single) or not (true dual)?

01-09-2014, 05:15 PM	#11 (permalink)
V1H Base Member Join Date: Dec 2013 Location: United Kingdom Posts: 244 Drives: 2013 370Z-TT GT Edt Rep Power: 3368	By "matching the down pipes to the exhaust" you mean matching the down pipes to the cats/TPs, right? I understand that after that there's still the X-pipe (true dual) or Y-pipe (single), after which comes the mid-pipe, ect. I see many (catback) exhaust sold, starting from he mid-pipe onwards. That leaves the choice of X-/Y-pipe to me. And since the inlets of the Y-pipe will be smaller than the outlet, I do have to make sure the down-pipe-catalyser-combo mates to the Y-pipe inlet, but also the catback mating to the Y-pipe outlet, right? That is a lot of mixing and matching to deal with, no? So which sections should ideally be 3"? all of them regardless of whether two pipes merge into one (single) or not (true dual)? Last edited by V1H; 01-09-2014 at 05:18 PM.

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