What's The best thing to do with A Mac O/R H pipe?
Get the Mac 2.5" Cat back?

 

YouTube is your best friend when it comes to Exhaust..

 

i got me a true dual 2" flowmaster 50 sieries and it improved hp and it sounds great. not to mention so many people think i have a v8 sleeper until they my motor.

 

do you already have the O/R hpipe? if not then go with the catted one unless you already have f/i

 

No I don't have it yet. I was just thinking O/R would be better. Isn't it louder?

 

well it depends on you state inspection, if you need cats to pass or not, and yes o/r is a lot louder, it deletes your cats, but its up too you if you want, i heard that it can have bad back pressure, but you could also delete just 2 cats, you have 4 on your car.

 

With the O/R H pipe wouldn't there still be 2 cats before the H pipe?

 

well you can, if you put in longtube headers you can add a shorty h pipe with cats, and i guess you could do the same thing, but theres not really a point, i mean a off road pipe is meant to delete the cats