Originally Posted by JoeKasuska (Post 2616840)

Hey everyone, this is my first post and I wanted to know about the MXP Comp RS catback. There isnt too much info on the forum but it seems to be well liked. I wanted to compare the loudness of it to say the Invidia n1. dB would be really helpful. I also plan on slapping on some UEL headers down the road so I wanted to know if its too loud after? I love the deep throaty sound and I want something with moderate loudness. Im wondering if the q300 is the better option rn. Not trying to break the bank either.

Thanks for the help!

Originally Posted by Amputechture (Post 2742633)

Contemplating this CB...can any owners verify what the true inner diameter is of the midpipe section?

Originally Posted by mav1178 (Post 2663443)

Probably super late on the reply for OP...

I had both the MXP header as well as the MXP Comp RS exhaust on my car in late 2014. Was testing some fitment for them.

With stock front pipe, it was loud.. as in "shaking the whole house during cold startup" loud.
With Berk front pipe, my ears were ringing.

-alex

Originally Posted by Hawker271 (Post 2820504)

How much louder would u say it was with just the header compared to with only the catback, with stock front pipe?

Originally Posted by Hawker271 (Post 2820776)

Lol how much louder with the header on +catback vs only the catback. With stock front pipe. I have the comp rs and can't gauge how much louder a cat less header would be