Hey guys. My first mod was an MRT Catted H-pipe. I figured maybe a little write up would be appreciated by some people.

1. It sounds great. It is not obnoxious, but adds a definite rumble and muscle car sound. And that is with stock mufflers. (I can't wait to hear it paired with a new catback).

2. You feel a little bit of power. It's not a ton, but it is slightly noticeable.

3. The stainless steel is great and it is mandrel bent and has high flow cats. So the quality is TOP-NOTCH.

I would definitely recommend the pipe to people looking for a new mid-pipe.

Installation was a little difficult. Granted I bought my car used and it is almost 10 years old. I did have to take it to a shop because I could not budge the bolts connecting the pipe to the headers. But with some PB Blaster and time I did get the bolts that connected the pipe to the cat back. The shop was able to get the stock pipe down and new pipe up and on in about a half hour or so, which was great and probably worth doing to save the frustration (unless you have a lift and can get under the car standing).

Overall, I am very happy with it. Made a great first mod for my Mustang and I can't wait to see how it sounds with a cat back system!

 

Congrats! I had the MRT catted h on my ride for about 2 years (went with a shorty h and long tubes) before i sold it. I really liked it. Great quality, sound, and a nice power bump. I was actually given a set of the MRT cats themselves, and had them welded into my BBK h pipe.

I had a cat back first, and when i added the MRT pipe it made a big difference in sound. I think you'll be very pleased with the right cat back.

Did you have MRT do the work?

 

No just a shop that had time the day I got it. Called around to see who get it on! It was a WearMasters though.

 

Have you heard the MRT catback with their catted h? It sounds pretty awesome imo. Scott fired up a cutomer car with that combo, and it was an impressive sound for sure!

 

Anyone know if i would pass smog in California with the MRT catted H. I just put on my mac catback yesterday and sounds awesome but i still want a little more sound. I don't wanna get any tickets for not having cats on so i'd be covered with this, only question is is will i pass smog.

 

That's funny you ask! I recently had a talk with the owner of MRT about this very subject. I asked about their hi flow cats and emissions testing. He said that one of his coustomers in California passed with their catted h.

 

I had some fitment problems with mine but overall I'm very happy with it, except the price.

 

It is priced pretty high, but realistically it's still a great value for the materials and quality pipe you are getting (plus the high flow cats). And I thought they were California legal and it sounds like they are, although I have no certain answer on that.

 

I dread moving where emissions will matter again. But it's coming. How bad is the powerloss with the high flow cats on these? I would like to go with this or a catted X but I want something that will get as close as possible to the gain of a catless pipe.

 

....there might be 1-2rwhp lost by switching to a high flow catted mid pipe. I doubt it even feels any different.