I have a boosted b16 with a t25 at 10psi, and when i hit vtec (4800)in falls on its face then about a grand after (5500ish) it starts to pull hard gain. my wideband is reading around 11.3*. my boost also starts to surge at 6 to 7 until it 5500 then the boost starts to climb again. Could it be my downpipe being to small. downpipe was made by this guy i bought it from and it looks like it 2.5 but some spots look smaller. Thanks for any input.


Modified by 97BLACKCIVIC at 8:08 AM 6/22/2005