eclipsegt

how much approx hp would this car have.....1999 FORD MUSTANG GT, 5 spd,, BBK offroad XPipe, Flowmasters, Cold Air Intake,underdrive pulleys. thank you

66_mustang_04

not much ...about 270hp... 220 rwhp maybe even less?

Dan04COBRA

Uh....220RWHP or less? Stock they will put down anywhere from 220-230RWHP.

It'd be safe to say you've added atleast 10 RWHP.

66_mustang_04

okay cai intake about 2-3 hp if even that udp probably like 3-4 and the exhaust setup probably like 7-9hp

racer02GTstang

yea, hes doesnt have to much rwhp... but he does have more than a stock gt... just worry about if he has gears or not and hes not tellin ya.

GrayGhost01GT

Everyone stop Yapping LOL And One word will tell you everything you will want to know "Dyno!" $50 would never hurt!!!! LOL

jishead

Dyno can be so disapointing! I had my rig tested and found that I was maybe 30 over stock at best (RWHP). NOt too disapointed. Later in life, I got the predator and applied an aggresive tune. I was happy with the sound and seat of the pants feel improvement. Went to a different dyno and it showed a decrease at first. Subsequent tuning showed like 3HP gain or something crazy to the point that I haven't even updated my Sig. Anyway, my 4.6 screams nice but the dynos for me were a bit of a let down!

devinsteen

You figure 220 rwhp stock.....so add the exhaust (10rwhp) and the pulleys and cai (10rwhp) and you get around 240 rwhp. That seems about right to me....but it varies from car to car.

nanaki

well i only had 239 with X, catback & gears. so call yours probably 245-247 probably.