Graves Motorsports 2nd Generation Full Stainless Exhaust System - Yamaha R1 (2004-2006)

Graves Motorsports 2nd Generation Full Stainless Exhaust System - Yamaha R1 (2004-2006)

Graves Motorsports 2nd Generation Full Titanium Exhaust System is the same system we used on our championship winning 2006 AMA Yamaha R1 Superstock Bikes. This exhaust system feature our new tapered conical endcaps. These exhaust systems are manufactured from titanium which is then robot welded. This exhaust system is simply the finest exhaust system you can purchase. Gains of 14hp can be achieved with use of a Power Commander. Installation of this system will shed 7 lbs from the already light bike.

Redesigned 2nd generation exhaust system for your 2004-06 Yamaha R1 are now available with the GMS new style conical silencers which incorporateour exclusive patent pending "Ever Last" packing. While offering the same if not better horsepower gains as the 1st Gen. system you now get the sound and the looks of our new systems. They are available in Full stainless or full Titanium with dual under tail Carbon fiber or titanium silencers.

Features of the new Tapered Conical Canisters

Inlet: Titanium is deep drawn over a precision die. The inlet allows for a very compact canister design.

"Ever-Last" Packing (patent pending): Our packing material is made up of several continuous strands of fiber rather than short chopped sections of fiber. Each continuous strand of fiber is several hundred feet long thus preventing it from being blown out of the canister by the exhaust pulse. As such we do not have to use a stainless wool or stainless steel mesh to hold the packing back. By removing this barrier the packing can do a better job of absorbing the exhaust pulses.

Packing Divider Plate (patent pending): Exhaust pulses tend to push the packing toward the exit of the canister reducing performance and increases the harshness of the exhaust note. The packing divider plate ensures the "Ever-Last" packing material stays put in the first third of the canister where it is needed the most.

Tapered Core: The tapered cores are altered in size and taper length for each motorcycle. By doing so we can maximize the performance of the exhaust system on each motorcycle.

Outlet: The new end cap is made from Titanium and is of a tapered conical shape. Titanium is deep drawn over a precision die.

Exhaust System Weights
Graves Full System (Oval Canisters w/ Tapered Conical Endcaps) = 10.38lbs.
Stock Full System = 17.40lbs.