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 stamped out, mass produced pipes from thin gage materials, they have a hand- fabricated look that is reminiscent of the days when pride of workmanship was the main concern rather than the cost of each unit. We build our 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. Our pipes have superior dimensions and flow better than stock - resulting in noticable power gains. endcaps are bolted for easy removal when changing inserts or repacking
all CRF 150R / 250R / 450R ( $ 429.00 )
06-2010 KX 250F / 06-2010 KX 450F ( $ 429.00 )
07-09 YZ 250F / 07-09 YZ 450F ( $ 429.00 )
all DRZ 400 SM-S-E SSW/MRD ( $ 459.00 )
STD full systems - these pipes come with a spark arrestor & quiet insert installed
all CRF 250X / 450X ( $ 429.00 )
all DRZ 400 SM-S-E ( $ 429.00 )
The SSW/MRD mod pipe was developed with the help of respected engine builder / tuner Eddie Sisneros of Sisneros Speed Works. This pipe allows a fully modified DRZ 400 engine to develop maximum HP, it works well on near-stock engines as well, and is often the pipe of choice for someone who is going to be modding their engine over time and could otherwise outgrow a STD pipe.
spark arrestor $ 10.00 quiet insert $ 15.00.
open insert - for removing q-insert $ 10.00
* 2010 250R / 09-2010 450R ( $ 459.00 )
2010 YZ 450F slipon ( $ 279.00 )
NOISE LEVEL .......... OUR RACE PIPES ARE ABOUT THE SAME NOISE LEVEL AS STOCK & OTHER AFTERMARKET PIPES ON MOST MX BIKES AT FULL THROTTLE OUT ON THE TRACK ,WE HAVE TESTED MANY DIFFERENT BIKES AT FULL THROTTLE WITH OUR PROFESSIONAL GRADE DB METER AND HAVE FOUND THAT THE CURRENT LOW RPM SOUND TEST METHOD IS OUTDATED AND UNABLE TO DETERMINE THE REAL WORLD NOISE LEVEL OF THESE BIKES , STOCK MUFFLERS HAVE BEEN DESIGNED AROUND THE LOW RPM TEST FOR A FEW YEARS NOW AND THEY ARE ONLY QUIET AT LOW RPM BECAUSE OF THIS, WE OFFER A QUIET INSERT FOR REDUCING FULL THROTTLE DB ( WHERE IT MATTERS ) ON OUR SYSTEMS THAT MEET THE NEW FIM 2 METER MAX FULL THROTTLE SOUND TEST STANDARD'S
SSW/MRD system shown here
MODELS NOT ON LIST ARE NOT AVAILABLE AT THIS TIME