id like to here some estimates on HP gains from full exhaust.

 

According to your sig you already have one. How is it?

 

on a stock vehicle, i say little to... well, very little. My track times really didnt improve with the addition of the full exhaust. For what headers back costs, id never do it for HP increase, on a stock vehicle that is.

 

well i dont have them quite yet, they will be here thursday. i just know there should be a difference. i mean the stock headers suck and so does having cats and a restricting exhaust. right after that ill finally have my 3.73's installed =D so i mean ill notice a difference =P

 

sounds good, you'll def. notice the gears, but like i said before dont expect much from the exhaust, that is until you start doin engine mods.

 

Hmmmm, so you've posted mods before they are on the car. That's funny!

 

i have em but i live in WA and well im sure you heard about our record rainy season. anyways i dont have the tools for the 3.73's and i just ordered the Exhaust on monday. but it all will be on the car soon, the Flowmasters are already on *came with the car when i bought it*

 

I haven't done headers but I've done an x pipe and flowmasters and I never noticed a difference. I actually though my car felt slower when I put the x pipe on.

 

there should be a difference maybe not noticeable to you guys but i believe there should i mean a better flowing exhaust does mean more power.

 

when you're talking about a stock engine, its not really more power, its just more potential. There is probably a small gain but its not really enough to turn a faster time. Before my exhaust i ran 14.366 @ 98.37 and with the full headers back exhaust i ran 14.294 @ 99.2 with similar tires, which could have easily been a difference in my driving... the top end seemed to get better but I couldnt really turn a better time. Maybe I could have if i had had more driving experience, never know...