[Johnny_Rocket76]

Anyone out there have these on their 6? Im considering them because they are a fairly cheap add on. What kind of hp gains can I expect from these? How do they sound etc?

Thanks.

[vicma762004]

ugh maybe 10hp, dude unless you have full exhuast Headers, Xpipe and mufflers you wont feel much of a diffrence, i noticed a good diffrence on my T5

buuuuut... if its an automatic you'll prolly feel a stronger pull.

[xchris]

Most likely nothing, I have the steeda ones which are almost the same and not only did it not make a sound difference but it gave no performance gains. You can get them and try them yourself if your installing them but if your having them installed they will charge $500 or so dollars for no gain... at all...

[mercfocus]

Are you talking about Mac Performance headers? That's what I have.