The thing bottle necks at the resonator to less than 2" ID
It is one of the loudest exhaust out there but, sounds great

 

the the exhasut sounds ####ing great and purrs so nice. i dont get how you can loose that much power. my car also boogs alot too especially coming out out of first gear the whole car will rock and sound all WACKED!

 

pretty random they would release something that performs so poor. also, under a 2" id in the resonator? what the hell were they thinking?

 

Look at my dyno plots, it was the bad guy for me and it's a place for you to start.
It won't take long to switch out then reset your ECU then, go for a ride...see what the but dyno says

 

.

 

if you really like the looks and the sound, I know its already loud but a quick solution would be to get that section replaced with 2.5 inch piping?

the Ti would most likely be pricey.......

 

I would also say lose the AEM intake and get a spoon filter for your stock box. You will notice a much quicker throttle response from the stock box even though it sounds quieter. Top end power will likely increase a bit.

 

same thing when i had an injen intake and a neuspeed exhaust... lost 27rwhp... put back on the stock exhaust and got the power right back... i also suspect it is the exhaust.

 

i had my07 dynoed on a mustang dyno and it got 162rwhp and it is completly stock with 12000 miles. so dont feel to bad.

 

Dyno run this time last year and


Dyno this year on a different machine no change in mods at all


29 Hp difference between the two machines I really don