seattleswimboy
Member
I come from mustangs, M3's, and sport bikes and also have many friends with Harley's. The stock and aftermarket exhaust configurations seem to be lacking in any significant R&D for ideal flow and power output. With most true duels regardless of make or engine configuration, exhaust upgrades usually include one of or a combination of H pipe, Xpipe, stepped headers, or merge collector. The purpose of these features is to take advantage of the scavenging effect from one cylinder to the next helping create a suction action to pull exhaust gas out of the engine and help pull in air on the intake stroke. Even the R nine T stock comes with an H pipe header, but the R18 does not and I have yet to see an aftermarket company apply any of these features to their offerings. I can't understand these companies selling 2 or 3k full systems without providing any performance upgrade other then weight savings and removing the exhaust valve and cat. In it's stock form the r18 motor is significantly down on power compared to offerings from Indian and Harley, but with some actual R&D this engine could prove to be extremely capable. I would love to see the exhaust companies come out with some full systems that are designed to maximize power while still looking good, But in the mean time I will have to go the custom exhaust route just wished I had access to a dyno to do trial and error to find the best setup for this motor.
Anyone else find the aftermarket offerings lacking?
Anyone else find the aftermarket offerings lacking?