Waste unless you get a header! But yes, a more open exhaust will help Hp wise. I've seen people get big Tq numbers on smaller piping such as stock, but i'd deffinately get a header no matter what.
N2O + Bolt-ons
= 220Hp/
250Tq
Coming Soon:HpTunersPro, EagleConnectingRods, WiescoPistons, 13sec2200
Thanks for the replies... What i mean to ask is do i need a bigger exhaust just for the n2o? for example, people running boost usually do 2.5" or 3" and i was wondering if that size was necessary. Also, the link that i had in my original post is the full exhaust system incl. headers.
Hmm I didn't notice anywhere it saying it was a complete header to full exhaust system. I only know two companies making exhaust systems like that an they're in the $700-$1000 range.
But whatever...
As Silver Streak said, no you don't need it. People who run low boost don't even need it. Just gives more power if you do.
N2O + Bolt-ons
= 220Hp/
250Tq
Coming Soon:HpTunersPro, EagleConnectingRods, WiescoPistons, 13sec2200
2.25 inch is good enough for the nitrous and everyday use
Im a Xbox 360 fanboy...and damn proud of it!!
or get a header and high flow cat and an elcectronic cut out, thats what I'm doing and I know that Darkstars did that and he said it worked great you just need to find out how much to open the cutout for maximum performance!