What exhaust is one notch louder than stock?

[MIKE PHILLIPS]

Lethal Catted X with stock mufflers, IMO awesome. :thumbsup:

Lethal Performance 2010 GT500 High Flow Catted X-Pipe [LP-GT500CATTEDX] : Lethal Performance, Performance parts for Ford Mustangs

 

[zimm17]

I'm sticking with the off-road pipe. I have no emissions testing with Florida tags and I don't want to burn up cats using my launch control at the strip this summer.

 

[CodyWayne718]

Yes, COTS and rear 02's need to be off to get the power out of it and so the check engine light isn't coming on.

What is COTS? Debating to do just an orx or not since I don't have a tuner yet. Thanks

Sent from my DROID BIONIC using Tapatalk

 

[CodyWayne718]

Alright I finally found what COTS were. Thanks

 

[SSThunder]

anybody have the Pypes catback system? the car I'm looking at has this and I noticed the tips stick out more than the stock system. I played video of the system on a GT500 and it sounded good, just didn't care for the tips sticking out so much. Hopefully this can be fixed.