skuccio's max

iTrader: (1)

Would it be worth it over a 2.5" crush bent system? The butt dyno noted a much stronger low-mid range pull going from stock to 2.5". People are making more power with 3.0" exhausts on stock H22s (2.2L 200HP motors) over 2.5" exhausts. I figure the VQ could only use more help. I'd prob couple it with a custom Y-pipe. Worth it or not? I think they would cost the same for me.

Kevlo911

iTrader: (36)

A 3" crush bent exhaust > 2.5 Crush bent on a modded VQ.

DrunkieTheBear

iTrader: (17)

+1

Look for a mandrel bender tho

skuccio's max

iTrader: (1)

Sweet so that is that then. I knew the VQ35 dudes were making nice power with the 3" pipes so yea this makes sense.

kzoosho

iTrader: (16)

I picked up 35 hp when i went to a 3 inch turbo back from 2.5 . iknow thats not n/a but still showed gains.

throttlehappy46

2.5" to 3" megaphone off the back of the Y pipe collector will make you smile or just fit a 3" system at the first flange which should still give a decent gain.

Should be no problems with a crush bent system f you not chasing every horse.

ray_289

iTrader: (8)

so if i had a 3" starting right after the y-pipe i would notice a difference?

krazy6

iTrader: (5)

If you can't find someone with a mandrel bender (very likely) just buy some 3" bends off summit or jegs. Then take them to an exhaust shop and have the guy cut and weld everything up.

skuccio's max

iTrader: (1)

Meh I think crush bending will be good enough.

accordingtou

iTrader: (41)

Yes

krazy6

iTrader: (5)

Whatever floats your boat!

throttlehappy46

3" bends with cutting and welding still introduces a lot of turbulence, as the welding protusions inside the pipe etc along with the extra labor charge for the effort of welding it up makes it a questionable 'gain' over crush bent for the price. Especially on a N/A car

krazy6

iTrader: (5)

My guy charged me $150 to weld up the exhaust. Seems pretty reasonable to me.