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My baseline dyno numbers were 261.5 hp & 275.3 tq. I think a lot of the advertised gains are subject to the other installed mods. If you add all the supposed gains for each of my mods individually, it would be more than 47. Keep in mind though, this is only a 91 tune. I do have a 93 tune coming...

For what it's worth, I have the JBA long tubes and O/R H-pipe. Those, combined with a cold air intake, pulleys, and a 91 tune gained me 47hp and 47ft lbs of torque over stock. I have no figures for the headers alone however.

I bought a shifter from them and it was pulled wrong. (***** happens) They paid the return shipping and sent the correct shifter UPS 2nd day along with a sincere apology. I have NO problem recommending them.

Cool, glad I stumbled on this thread. Now I know exactly what my GT will sound like this weekend. JBA long tubes, O/R H-pipe and stock muffs. :nice:

I'll be adding JBA long tubes and JBA off road H-pipe along with a JLT cold air kit, Steeda pulleys and a Brenspeed tune in 2 weeks and will post my results then. I'd like to know what the headers/H-pipe only combo would add also, but I don't want to make the dyno run without a tune, and the...

It's kind of like some places don't accept checks. It's not that they don't want your business, it's that they don't want your check. Shipping to APO's is even more of a gamble to a business than taking checks. I used to work for a dealership that did internet parts sales, and they quit...

Will a tune/flash whatever they're called fix that?

Looks like it'll be cats for me. Thanks for your input!

Are there any ill effects with the off roads? I've read on 2 occasions that they cause a bad unburnt fuel smell. Is that the general consensus? I just bought an '06 GT and am trying to design the whole mod package in my head before I lay down any cash. Help an old skool guy out with this new era...