craezjo

how much horsepower and torque do you guys think i will gain with a cold air intake, 70mm throttle body, a throttle body spacer, underdrive pulley, shorty headers with stock pipe and borla cat-bak exhaust im hoping for at least like 250hp and 270 torq

HurricaneStang

Nope not gonna happen you basically need F/I to get those numbers at the wheels anywayz.

From my knowledge ill try to run down some numbers for you.

Cold Air Intake - 7-12hp (depending on the brand)
70mm Throttle Body - 5hp i think
Throttle Body Spacer - No Gains
Underdrive Pulley - 5hp maybe
Headers - 3-5hp
Borla - Pry around 10-12hp

Cant be exact but those are some of the typical numbers ive read about researching parts. Also if your gonna mod the car dont forget to get a tuner. The tuner will provide alot more of a benefit then some of those things it should be one of the 1st things you do to your car.

HurricaneStang

By the way....I just did the hp numbers i dont know about the tq for those parts. But getting a Cold Air Intake and an SCTII Tuner from a good shop (Evolution, Alternative Auto, Bamachips, Brenspeed) will net the most gains out of any of those parts i believe. Depending on the company, most say about 15-18hp and 20-25tq.

craezjo

im also getting 4.10s and a tlok i just want enought speed to keep up with the g35

Kriger

Aluminum driveshaft will help get some of those extra ponies to the rear wheels... I'd say 10rwhp for sure... I"m getting one put in, might be worth a dyno run