MXP Comp RS Catback Loudness-- headers or not??
 

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!

I am also interested in the MXP so this is great!
From YouTube videos it seems loud but not too loud.
Also, the n1 seems to have droning problems.

This is like it sound, deep/bass rumble

[ame="https://www.youtube.com/watch?v=ilTyrO4_kcQ&feature=youtube_gdata_player"]MXP Comp RS 1320 UEL Headers - YouTube[/ame]

It's not loud. Just super deep / bassy. It's deeper than my TRD catback (which is saying something). It doesn't drone like the TRD catback. The price is great and MXP (Mackin Industries) makes good quality stuff. Recommended.

Hey guys, I have been running the MXP COMP RS exhaust for about 6 months. First impression when I got it installed and drove the car, a lot louder than I thought it would be. Not sure if I just got use to it, but the exhaust did quiet down by an amount after 6 months of usage. It does drone somewhat below 2.5k rpm, but its not bad. Above 2.5k little to no drone. If you run 65 mph or higher on the highway in 6th, drone is pretty much non existent.

Loudness, I'd say this is more quiet than the N1 and louder than the q300. This is an 2.75 inch exhaust. The tone is deep and you get a pop here and there when shifting gears at redline. If you run it with a header expect it to be louder. I have a feeling it will be unbearable. But sound is subjective.

The welds on this exhaust is also well done.

I have been running this exhaust for little over 2 weeks now and like @mengmoua said, it is louder than I thought. It has a really deep and bassy tone. It is a bit loud inside the car between 2.5k and 3.5k rpm (at least for me) but not that bad. I can still have a good conversation with my wife inside the car with the radio on when cruising on a highway.

I'd say in my honest opinion the MXP Comp RS is somewhere between an N1 and the Q300 when it comes to loudness. It will definitely be louder with a header.

Very well constructed exhaust.

thanks everyone, this helps a lot. There really isn't enough information out there for this catback.

decision is definitely made.

I have the MXP Comp RS, UEL MXP headers and Overpipe installed and it's pretty loud. If you don't want something really loud then you might go with a different header setup.

How do i like it? i absolutely love it honestly. its loud but can also be pretty quiet at idle and normal driving RPMs. Start up is always really loud but as you know it idles out quickly and once it drops in RPMs it's fine. I couldn't be happier with my choice. I have a video i posted on Instagram you can checkout (its shitty phone quality and it doesn't capture the true deep bass tones) but you might get a better idea. Instagram username is Onitsuin. I will be uploading a better quality video to youtube when i have time as well.

This is what the MXP Comp RS sounds like.at WOT
https://youtu.be/q4j0V3R1T7k

If you're worried about it being to loud with a header, get the regular MXP.

I have it (rest of the exhaust is stock), and it's very deep and not too much louder than stock. I suspect with a header it will be just right. No drone, can't hear it on the highway with steady throttle.

I've been using the MXP Comp RS for a year now. Great exhaust, excellent value. i run it with an injen intake. Cold starts are loud, but tones down nicely once engine is at idle. WOT is nice, and not ricey at all. Highway at 3-4k can be a little droney, but nothing music can't fix. My buddy runs the N1 and god it's loud and droney compared to my comp RS.

Adjustable tips is also a plus to nail fitment, and tips are about 4' big enough to fill the stupid gap. Warranty is 1 year on Comps RS, 3 years on SP. I asked MXP about dyno numbers, and they said dyno numbers are 7-9hp (These numbers are subjective of course.)

If you have more cash, get the SP with Ti tips. The Comp RS is just a tad louder and a little more than half the price of the SP. I can't speak for paring it with other exhaust components, but for the price, you really can't beat the quality.

Did i mention, Made in Japan. I did lots and lots of research, my alternatives were greddy supreme and invidia n1 and Q300. I was one of the early adopters of this, there were no youtube videos when i got it.


Get it, save you some money, add some bass, fill those exhaust gaps. I love mine, and i think you'll like it too. Hope this helps.

This is not accurate.

-alex

http://oi58.tinypic.com/2q1sxuc.jpg

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

Buy it man I've had mine for almost a year I've banged it up scrapping and busted a cv axle (you can imagine how dented the exhaust is beside it) and it still sounds amazing and no exhaust leak it's not loud unless you get on it but it will get some attention when you start up and pull in

Im running the comp rs as well with the mxp front pipe and stock header. as previous posters mentioned and can be loud at start up and it was a bit louder that what i expected.

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

from what i remember when i measured it it was around 2.75

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

Huh?

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

It's like trying to gauge the difference between pit tickets at a metal show, and standing behind a jet plane as it takes off.

At some point you stop caring and you start looking at hearing aids.

-alex

Price of the Comp RS compared to other catbacks is very attractive. I know it's relatively loud and noticeable, but anyone know how this is for daily driving? Would it attract a lot of police attention? I've heard mixed things about it being on par with the N1 which is making me a bit wary.

The Works ABM is also at an attractive price. How does the MXP Comp RS compare to that? Anyone know?