This gearing change felt just about perfect. The tall first gear was now more useable making fast cornering less of a hassle. On the pavement, the bike still handled highway speeds but now buzzed a bit. This new system, which replaces everything but the stock header pipe, basically places their patented disc design into an T-6063 Aluminum shell with end cap. Like previous supertrapp systems, the new IDS system can be tuned by adding or removing the number of discs inside the canister.
More disks mean higher revving power while less discs mean less revving and greater low end torque.
The new design, which retains the forest service approved spark arrestor, provides for a cleaner look and no more burning or discoloring of the body pieces next to the exhausts exit. The IDS is narrow and straight rather than tapered to a wide end like their previous designs. Not only does the new system look great, it allows more clearance for knobby tires - sometimes a problem on dual sport bikes. The system takes about an hour to install and comes complete with instructions and all necessary hardware. Because our system was the first production sample for the XR650L, we were only able to obtain the race core.