_Flea_

Is there a power difference between the Mach-X Eco-Dual and the MR400? I'm assuming the the dual is a little quieter outside and inside the cab. Is this correct? I've watched the video about a 100 times, and both sound great. I have a 17-month old daughter, so I'm not really wanting the exhaust to be too terribly loud in the cab. I don't think either is supposed to have much drone, but less is better for me.

sluggo1

My MR400 has zero drone in cab at cruising speeds. Have not towed with it yet but the J-pipe design seems to really do its job. Loud when you want it to be (stepping on it) yet quiet and easy to conversate when cruising at any steady speed.

bigfx

iTrader: (1)

+1

57hippie

+2

celmore5630

Just want say I've had the solo 4" since they went on sale. Love it. Friends at work love it. Sounds better and better the longer I have it. I am posting because I am trading my truck in and plan to sell the exhaust. Can someone help me with the rules and procedures for listing an item for sell on this forum.

Franchi Motorsports

iTrader: (9)

Just make an ad in classifieds area with a picture of your actual item along with piece of paper showing your screen name and date in the picture

klumb15

I suspect the power difference between the two is negligible. The Mach X will be quieter than the MR400. However, if you want a single 4", you can substitute a Mach 46 muffler for the MR400. I had both. The MR400 was fine for everyday driving, but towing with it was quite obnoxious. The system never droned, but an engine under load tends to make some noise.

MisterC

What size wheelbase is your truck

Franchi Motorsports

iTrader: (9)

He already sold the exhaust just fyi

93Cobra#2771

iTrader: (2)

Love my Mach46 substitution on my 4" single.