MRD pipes are hand built from 18 gage 304 SS and 6061 aluminum, they are tig welded by hand by owner Dave Harryman. These are not over priced stamped out, mass produced pipes  , they have a high quality hand fabricated look.  I build my pipes from stainless steel because it is the best material for exhaust systems, SS holds more heat in for better exhaust velocity, SS does not dent as easily as TI  and does not require loose spring mounting to keep it from breaking. My pipes have superior dimensions and flow better than others -  resulting in noticeable power gains , independent dyno and track testing has shown the Z-Pro to make as much HP as any other brand on a stock DRZ with only the 3x3 and re-jet and out accelerate them as well , but where the Z-Pro  really shows its superiority is on a fully modded DRZ engine where it makes a wopping 5 hp more than other popular DRZ pipes 
HomeAbout UsPipesOrderContact UsVintage Jetski Division

The MRD  Z-PRO mod pipe was developed  to support a fully modified DRZ 400 engine and develops maximum HP it can be run with a quiet insert and spark arrestor,  and there is no down side to run the Z-PRO on a stock engine if you plan to do mods later
MRD-RACING.COM
MRD/z-pro  formerly named the MRD/SSW
OPTIONS
QUIET INSERT $ 20.00
SPARK  ARRESTOR $15.00


TAPERED DESIGN 304 SS / 6061 ALUM CONSTRUCTION 
STRAIGHT 2 1/4" HIGH FLOW CORE
HIGH TEMP MUFFLER  PACKING
BOLTED ENDCAP



$529.00 FULL SYSTEM
 

EASY CHANGE INSERTS
Z-PRO SYSTEM

FOR THE SHORTY VERSION , JUST LEAVE A NOTE AT CHECKOUT OR SEND A E-MAIL AFTER YOUR ORDER IS PLACED AND REQUEST THE SHORTY

THE SHORTY MUFFLER IS 2" SHORTER AND IS A LITTLE LOUDER THAN THE FULL LENGTH  
 shown with old style logo on muffler can
NEW   
 low DB model