[SleeperStang88]

i know that you do gain sum power up top from dual exhaust, but you also lose some down low, my bud just got duals and i take him from the dig every time, but i also have an intake .....would headers help with the lower power or no? and why is longtube headers better than shorties?

[WLJohnson05]

http://www.moddedmustangs.com/forums...ead-clips.html

how big was the piping he got? the bigger piping can cause a loss of backpressure.
headers will help with power and sound. shorties are pretty much the same as the ones thats are on there. u might get a slight sound difference, but besides that nothing from shorties

[SleeperStang88]

yea thats wat i thought bout the headers, and he had 2.5 true duals and yea i looked at all the clips and im not sure wat i want to put under my car, i want longtube headers, with an x pipe, and flowmaster 40s i hope that will sound and performe good

[WLJohnson05]

Originally Posted by SleeperStang88 yea thats wat i thought bout the headers, and he had 2.5 true duals and yea i looked at all the clips and im not sure wat i want to put under my car, i want longtube headers, with an x pipe, and flowmaster 40s i hope that will sound and performe good

yea 2.5 could cause that loss. exhaust setup sounds good, i prefer the hpipe but to each his own on what sound their lookin for

[Avaric3]

Originally Posted by SleeperStang88 i know that you do gain sum power up top from dual exhaust, but you also lose some down low, my bud just got duals and i take him from the dig every time, but i also have an intake .....would headers help with the lower power or no? and why is longtube headers better than shorties?

ive seen a dyno sheet of someone that installed the ford racing shorty headers and they lost 10rwhp down low and gained the same amount up top which is rediculous. longtube headers give a gain across all rpms and youll be much more satisfied with it

[SleeperStang88]

so wat would a 2 inch pipe be better?

[SleeperStang88]

how do you like that VAP spacer? does it make the motor sound any deeper?

[MWWarlord]

I think that there might be other factors. 2.5 is a pretty good pipe size(but big enough to lose low end). Although, 2.25 would give a better low end. Don't go with 2" that is smaller than stock. But as I said I think there may be other factors in why you're beating him. Do either of you have any other mods? Has he tuned his car since getting that exhaust?...cuz that could help a lot. Do both cars have they same type of transmission? If you're manual vs him Auto(unless he has a shift kit and a j-mod) then that could explain why you're beating him. Maybe you've got better tires. And the most obvious possibility is that you might just be a better driver than him.

[Avaric3]

Originally Posted by SleeperStang88 how do you like that VAP spacer? does it make the motor sound any deeper?

the spacer does nothing for sound at all. the only sounds i know from my car is when it was stock and than the way it sounded after headers and full exhaust cuz i installed everything from the headers back all at once

[Avaric3]

Originally Posted by MWWarlord I think that there might be other factors. 2.5 is a pretty good pipe size(but big enough to lose low end). Although, 2.25 would give a better low end. Don't go with 2" that is smaller than stock.

2" IS the stock size on a v6, 2.25" on a gt/cobra/mach/bullitt and aftermarket is 2.5" and some are available in 3". if youre just gonna be an n/a bolt on v6 id stick wit the 2.25" piping but if you plan on stroking or power adders than id go wit 2.5"

[SleeperStang88]

yea i have other mods, i have a cai and a tb and 3.73 gears with t lok he is all cosmetic and we are both auto , and neither of us has had a tune yet, i need one really bad tho, cuz of my gears my speedo is off by 10 miles, when it says im doin 65 im actually only doin 55 wich makes me shift at wierd pionts oh and i do plan on addin a s/c so ill probably go wit the 2.5 myself

[WLJohnson05]

Originally Posted by SleeperStang88 yea i have other mods, i have a cai and a tb and 3.73 gears with t lok he is all cosmetic and we are both auto , and neither of us has had a tune yet, i need one really bad tho, cuz of my gears my speedo is off by 10 miles, when it says im doin 65 im actually only doin 55 wich makes me shift at wierd pionts oh and i do plan on addin a s/c so ill probably go wit the 2.5 myself

thas the reason ur beating him off the line

[Cricket]

your fine with 2.5, and you don't lose power...it's just moved. It's torque, and your powerband is moved a bit.

[riddlee josh]

yep the power band has moved up. it happened to me to