Whats the difference in full catback exhaust vs just axleback??

[TrueStreetTim]

Originally Posted by 2012mustang76123 so would the cat back system not let you pass inspection since it removes the catalytic converters?

Cat-BACK just means everything from the end of the cats (not including the cats) and back is replaced. Cats are part of the mid-piping.

Oh and the stock exhausr is pretty gd from the catback.

And this. From cat to axle-back is sufficient with nothing measurable to be gained.

[Dan12GT]

Originally Posted by TrueStreetTim Cat-BACK just means everything from the end of the cats (not including the cats) and back is replaced. Cats are part of the mid-piping. And this. From cat to axle-back is sufficient with nothing measurable to be gained.

Tim nailed it.

[2012mustang76123]

Originally Posted by Dan12GT Tim nailed it.

noticed you have a catback vs axleback, did you notice anything?

[Dan12GT]

Originally Posted by 2012mustang76123 noticed you have a catback vs axleback, did you notice anything?

I never had an after market axle back on it so I couldn't say much for gains between the two. It had to have picked up something though along with my Airaid. I dyoned bone stock 372/359 and after Airaid intake / Borla S-type catback it was putting out 382/387 at the 1st TS dyno day last year. No tune yet. So I'd say the catback attributed to a bit of those gains.