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.  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
The SSW/MRD mod pipe was developed with the help of respected engine builder / tuner Eddie Sisneros of Sisneros Speed Works. This pipe is made from bigger dia. tube and has a bigger muffler core than the PROCOMP that allows a fully modified DRZ 400 engine to develop maximum HP,it can be run with a quiet insert but will not accept the PROCOMP II muffler core assy. you can however add a carbon fiber tip , it works great 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 PROCOMP pipe. 
MRD-RACING.COM
                                                                                          SSW/MRD prototype.
NOISE LEVEL .......... OUR PROCOMP RACE PIPES ARE ABOUT THE SAME NOISE LEVEL AS OTHER AFTERMARKET RACE PIPES AND STOCK PIPES ON PRE 2011 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 OUT DATED LOW RPM SOUND TEST METHOD IS UNABLE TO DETERMINE THE REAL WORLD NOISE LEVEL OF THESE BIKES , WE OFFER A QUIET INSERT FOR REDUCING FULL THROTTLE DB ( WHERE IT MATTERS ) ON OUR PROCOMP MX SYSTEMS WHEN YOU NEED TO RUN QUIETER . AND THE NEW PROCOMP II MEETS THE NEW AMA / FIM 2 METER MAX SOUND TEST
ProComp Full Systems   $ 429.00 to $ 459.00
CRF 250R 04 to 2012 & CRF 450R 03 to 2012
KX 250F 06 to 2012 & KX 450F 06 to 2012
RMZ 250 10 to 2012  & DRZ 400 SM / S / E all years
YZ 250F 07 to 09 & YZ 450F 06 to 09 
ProComp Slip-on     $ 279.00
YZ 450F 10 to 2012 
CRF 250X all  & CRF 450X all 
SSW/MRD Full System                         $ 459.00
DRZ 400 SM/S/E   all years
ProComp II Full Systems  $ 519.00 to 549.00
ProComp II Slip-on    $ 369.00
PROCOMP II
STEPPED DESIGN 304 SS / 6061 ALUM CONSTRUCTION
MRD  ANTI REVERSION RESONANCE CHAMBER CORE
HIGH TEMP SS LONG TERM CORE WRAP     
HIGH TEMP SPEC 31 PACKING
AMA/FIM LEGAL ( PASSES 2 METER MAX TEST )
CARBON FIBER ENDCAP TIP
BOLTED ENDCAP
15" MUFFLER (450)                                                                               OPTIONS
SPARK ARRETOR INSERT
 
 
PROCOMP
STEPPED DESIGN  304 SS / 6061 ALUM CONSTRUCTION
STRAIGHT 2 " HIGH FLOW CORE
HIGH TEMP PACKING
BOLTED ENDCAP
14" MUFFLER 
DRZ & CRF X COME WITH A QUIET INSERT & SPARK- ARRESTOR
OPTIONS
QUIET INSERT
OPEN INSERT ( FOR REMOVING QUIET INSERT )
SPARK ARRESTOR
CARBON FIBER ENDCAP TIP
SSW 60 HP DRZ
SSW/MRD    ( DRZ 400 ONLY )
OPTIONS
QUIET INSERT
SPARK ARRESTOR
CARBON FIBER ENDCAP TIP

TAPERED DESIGN 304 SS / 6061 ALUM CONSTRUCTION

STRAIGHT 2 1/4" HIGH FLOW CORE
HIGH TEMP PACKING
BOLTED ENDCAP
14 " MUFFLER
 
PROCOMP RACING SYSTEM
PROCOMP II
 SELECT PROCOMP II OPTION AT CHECK OUT