Q: How do RCE pipes compare to the competition? RCE is a smaller and more nimble company than the other larger pipe manufacturers. This allows us to benchmark their best products (K4, B4, B5, etc.) and TEST TEST and TEST new RCE designs until we develop a superior product that outperforms the competition on a variety of engine combinations from many top engine builders. But don't take our word from it. Just look at the winner's circle for RCE's national and regional results. Q: What jetting should I run with a RCE pipe? Customers have had excellent results with Keihin PWM, PWK, Mikuni TMX, and Dellorto carburetors while using the RCE pipe. Our experience has shown 38-39 mm carb sizes to work best. If tuning to EGT, look for a maximum temp around 1300° F 3" downstream from the exhaust flange on a CR125. However, measuring EGT is not a necessity, and plug color via WOT throttle chops is the best overall indicator of main jet mixture. Part throttle jetting should be refined via pilot jet, needle, and throttle cut-away experimentation similar to most Motocross applications. Q: Will a RCE pipe work best with any porting spec? No. All of the key parameters of a two stroke engine work in close harmony with each other. There is a strong coupling between the intake system, port timing, and pipe design. A mismatch here will cause a degradation in performance. The RCE pipe was not designed to work like a typical motocross pipe. A stock Honda CR125 will have its power band between about 7,500 and 11,000 RPM. The RCE pipe is designed to make best power between 10,000 and 13,000 RPM depending upon the ignition curve. Corresponding port timing changes are necessary to take advantage of the pipe's capabilities. Engine packages prepared by numerous tuners have won big races RCE pipes. Contact a RCE dealer for more specific details and pricing. Q:What is the best method of cleaning my RCE pipe? Use a Scotch Brite (tm) pad and ample WD-40 (tm) or equilvalent lubricant. Make sure and spray down the pipe after each race. For peak performance, spray some light oil into the pipe after a race to help prevent internal corrosion, which can adversely affect heat transfer. Q: What should I do when installing my RCE pipe? The RCE T3 125cc pipe is designed to mount with a standard CR125 rubber isolator from the uppermost coolant housing bolt. NEVER MOUNT A PIPE RIGIDLY. Breakage will occur nearly immediately. Also, mount the silencer with some compliance (ie, rubber washer type mount) The RCE R8 80cc pipe mounts with a spring type cradle in a standard manner. Q:Besides cleaning, what regular maintenance should I do to my exhaust system? Make sure and reseal the header connection with some high temp RTV sealant after each race. The metal grommet (or O-rings on KX's and YZ's) should be replaced every 2-4 hours of use for effective sealing. Amazingly, we have seen power drops of over 3 HP from a poor header/cylinder/pipe seal.