What other mods do you have, as far as air-flow mods. Like a cat-back, headers, intakes, etc.
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"I'm not driving too fast...just flying too low"
Mine:
-87 ranger- broke
-03 SB Cobra vert- 2552 of 5082 Born 02/25/03
Our's:
90 7up vert - new project
just an hpipe? i wouldn't say more then 3-5HP but your sound probably got much deeper with the cat delete and midpipe. go for some long tube headers and you will see 15-25HP increases!
lol make sure to post your mods when you post for wanting to know how much hp/tq it added. On a stock car you will lose a bit of backpressure, perhaps drop the dyno peak numbers down a tad but have it a little fatter on the top end~
With a blower and 8psi you should pick up 5-10hp~ and tq.
__________________ 2003 REDFIRE COBRA #3938 of 5082 @ 05/27/2003 1 of 414
MGW Shifter, Stingers, JLT, SS Inserts, MM FLSFC & CC Plates, SS Lines, H&R Race springs, IRS Brace, MRT Hood Struts ME.com Member #29 - 400rwhp/380rwtq