Originally Posted by Swaglife81
I think I've abandoned the idea also and probably gonna go with a budget setup. Not sure what route. I have a 03.5 Sedan and my OCD kills me having exhaust come out to one side. I understand the evap is in the way on the passenger side but I'm really really contemplating a dual center exit setup. Basically by a Coupe catback and a little modding at the muffler shop for a rear center exit. If I'm gonna do it, I want to improve the exhaust in worthwhile amounts.
So you kept your exhaust stock but ran 2.25 from the x-pipe back and had a g37 muffler welded in. Is the resonated X-Pipe the one that looks like a 1-2 muffler? I will probably buy Bassani BX muffler or mufflers.
Magnaflow Resonated X-pipe.
If you send me a PM i can get you the part number.
So yes my exhaust comes from the cats to the X-pipe and then 2.25 pipes from there until the G37 muffler (which has 2.5 inlet, but 2.5 is too big and will make our cars lose power).
I wanted it because the G37 muffler has good back pressure so that you don't compromise the low end TQ and that muffler has internal flaps so that its quiet in low RPM driving.
You end up with stock-like sound / sound level but alot more power.
Overall my exhaust setup gained 10-12WHP across the boards which really helps in the low/midrange.
I first did a Dynomax VT setup with 2.25 piping and a Dynomax VT resonated X-pipe, the Dynomax X-pipe was extremely loud and the VT's killed all the low end TQ because the car made too much exhaust even at low end and they don't offer much back pressure, especially once the flaps open.
After being completely dis-satisfied I changed it up, G37 mufflers are cheap on ebay aswell so that + the X-pipe you can get the 2 parts for under $300 typically and then either cut / weld the pipes yourself or it should be a couple hundred dollars from a local muffler shop to make the piping.