his is the year of the liter-bike. The big-displacement R1, the GSX-R1000, ZX10 and CBR1000RR are all road-rockets, sport machines serious riders can’t wait to throw a leg over and head for the nearest stretch of high-intensity pavement. And as good as these bikes are—and they’re plenty good, they’re also just the sort of bike a serious rider can’t wait to make better. Naturally, the swap to a performance exhaust is first on the “must-do” list, and just as naturally Yoshimura’s there with the right hardware.
     Take a look at the new full-system for the R1. For the ‘04 R1 Yoshimura has unveiled one of the trickiest exhausts they’ve made to date. This system features dual TRS mufflers. It’s a distinct look, greatly improving the R1’s racy lines. That look comes with a crisp exhaust note, too. There’s nothing else like it. And of course the system performs. Yoshimura TRS silencers are a racer’s favorite. They’re almost standard equipment in Superbike, Supersport and Formula Xtreme, and they’re just as popular on the street. The TRS was a natural for the new dual-silencer R1 system.
And of course Yoshimura’s ready with the right stuff for the GSX-R1000. This is the bike they race, the one that’s currently the reigning AMA Superbike and the AMA Formula Xtreme winner from 2003, the bike Mat Mladin and Ben Spies took to the championships using the RS-3 exhaust. For 2004, the team is using the TRS exhaust systems and these systems come with everything found on Team Suzuki Yoshimura’s race pipes. There’s the added choice of either the standard RS-3 and TRS systems or the RS-3 and TRS “Duplex,” too, featuring crossover chambers with shorter head pipes for an even bigger top-end.
     For Kawasaki’s ZX10 Yoshimura’s got the race-winning RS-3 and TRS systems and mufflers. Either choice is a winner, and both work great on the big Kawi. Like the TRS, the RS-3 exhaust is race-proven (see above) with performance that translates right to the street. RS-3 systems pack a huge mid-range and build into an awesome top-end. Every trick Yoshimura’s learned on the track is included right here.
     Yoshimura’s ready for the CBR1000RR, too. The Yoshimura-exclusive RS-5 muffler is the featured piece here. This is the silencer that made its debut on the CBR600RR, the one with an unmistakable “MotoGP” exhaust note. There’s more than just sound happening here, too. In typical Yoshimura fashion, this slip-on is a power-builder, a quality addition to a quality machine. It’s a direct mount to the factory collector, too.
     All of the Yoshimura full-exhausts mentioned here average a five horsepower gain across the board, and just as importantly there’s an average weight savings of 30 to 40 percent compared to stock. The slip-ons all feature CNC-bent stainless mid-pipes, too, and mount directly to the stock collectors. Fit and finish, of course, is standard Yoshimura. Translation: quality.
     Yoshimura’s liter-bike exhausts for the R1, GSX-R1000, ZX10 and CBR1000RR are available in full systems in stainless or titanium, and slip-ons are offered for all four machines, too. This is the year of the liter-bike, and Yoshimura’s ready. Call your Parts Unlimited rep
and get that way, too.

The TRS systems are favorites, offering the look and crisp exhaust notes that both racers and street riders prefer.