T

I did a little test this afternoon and took off my mufflers to see just how loud my GT is so i can guage what the Pypes muffler delete kit is roughly going to sound like...and it rocks. I can't get enough of the burble, i took it for about a 3 mile drive, no biggie, but i still can't take it above 3k rpm since i'm at 150 miles still and need quite a bit more breaking in.

My concern was the loud popping noise when letting off the throttle, i THINK the car probably usually has that but the muffler tones it out. The big question is...would an axle back need a tune?? I really can't imagine much of a power difference, but i'm really looking more towards damage done. Is it safe to run this on a stock or CAI only tune without mufflers? Does it freeflow enough to mess with back pressure? My guess is no...what's your input.

*Edited for spelling*

07AlloyGT

axlebacks do not need a tune

Nuke

+1

No tune required.

T

That's what i figured, so id the popping just some fuel escaping the valves and igniting or somewhere along those lines? and maybe it's just not as noticeable on the stock mufflers. I had Flowmasters on my 06, and i want to say i had some popping in that, but it's been like 8 months and i just can't remember.

howarmat

where did you hear this BS at?

T

break in period = 500 miles, they reccomend not taking it above 3k rpm

T

Is there something i am missing? Or did you think i was talking about exhaust break-in? I need to know because if i'm incorrect on the break in period, i'm painting the streets black tomorrow

Pwny

You are right about the break in period.

T

Good that i'm not mistaken...bad that the streets will live to see another day[:@]

Can't wait till my first ticket for these being loud, only then will i know that i've done well. And that the cop doesn't like mustangs.

howarmat

no there is no harm at all in taking the car past 3k....you should be taking in well past that actually....vary the engine rpms.....im not saying take it to the track but dont baby the thing either