Hey guys I was wondering if you guys could throw some numbers at me. I was wondering how much total flywheel hp you think I may be getting in my GT. Starting at 260 I added the BBK underdrive pullies, K&N Cold air kit, Accufab 75mm throttle body, and the C&L Plenum. I just ordered the Magnaflow cat back so add that into your calculations. I run synthetic oil and have about 40K miles on it. Thanks for all you're responses, I'm just trying to get an honest idea of how much i'm making. Thanks!

 

Underdrives are worth a couple HP, 4-5, maybe alittle more, maybe even less.

Plenum is worth nothing until you get headers, TB is worth nothing until you get headers, the Mags will free up a few more HP, really need a new midpipe....

 

If i had to take a guess maybe 285ish? You REALLY should get a mid pipe. Thats the one and only mod i have.

 

yeah the midpipe is going to be my next mod for sure, just can't afford it yet though

 

Hey, Mach 1, speaking of looking for X pipes what do you think about you're SLP X pipe. Is it the 3 piece one I have been hearing about and is it catted or off road. also what is the sound and power differences you felt from the mod. I'm thinking about that mid pipe, and was looking for a bit more info on it. thanks!

 

I really like this xpipe. SLP has a lot of experince and they did a great job. Yes its the 3 piece, i got it with cats. I felt a very nice gain throughout the powerband and with the stocker catback the car is pretty quiet, but not too quiet and when you open it up it sounds very nice. It still sounds like a mach1, just louder, it also pops when you downshift which i think is cool. You definitly wanna get rid of that 4 cat h pipe you got on there now, the mid pipe is what does the choking not the catback.

 

With the flows I'd say your in the mid 240's at the wheels

 

Do you have a link for those x-pipes ya have? I just had 4.10 gears installed and my next mod is either headers or mid-pipes. Which do you think I should go with?

 

If you go with headers they better be longtubes - or don't waste your $$ and time. If you do go longtubes- you have to get the longtubes + midpipe together.

 

Im going with long tubes. was thinking BBK or hooker. Does BBK have a bolt on lt/mid-pipe combo for sale?