JGT

I've orderer some new mods (headers & UDPs). In a week or so, I will have everything installed and will dyno the car (it has an automatic transmission). What do you think my RWHP will be? I have no baseline dyno numbers.

Mods will be:
C&L Intake & Brenspeed 93 Octane Tune
American Racing Longtube Headers & Catted H-Pipe
Borla Stingers
FRPP 3.73 Gears
Steeda Underdrive Pulleys

2GKT5

315+ w/ headers and udps

1BAD3V

Are the headers long tube or shorties? I figured they were shorties so I voted for 305-309, but if they're long tubes than I think you will hit the 315rwhp mark or higher. Good luck and let us know the results.

PLstang

I think you break 315. Let us know, I'm having some of the same things done on mine in a few weeks. That is if I can ever get it out of paint![:@]

05SDI

Sorry but I guessing a hot clearday and you'll have to tweak the dyno to break 300 so 294! I HOPE for better numbers for youbut that's my guess!

Feng Houzi

im saying over 1000 million...

BoidMorphs

If you had a std tranny then you'd definitely break 300 but with the auto I'm thinking less than 290 tops.

WhiteStallion06

Good tune youll hit 300 .... what is it 5% power loss with a auto tranny rather than a manual?

07SCGT

My friends auto pulled a baseline run of a dismal; 255 RWHP. with LT headers and UDP I think you are lucky to be in the 280's, maybe 290's with a 1 piece driveshaft.

JGT

Some of the estimates are higher than I thought, are you all taking into account the automatic transmission?

I have been hoping for something over 300, that is the goal, but I am afraid I will end up in the 290s somewhere.

07SCGT - In addition to the headers and UDPs I am soon installing, I already have the intake and tune.

I am hoping with, for instance, a baseline of 255 + 25 (cai & tune) + 15 (headers) + 5 (UDPs) = 300 RWHP.

I know this is ricer math, but at least it is relatively conservative ricer math, right?