Graves Motorsports Yamaha R1 Slip-On Exhaust System Cat-Back Style 07-08

Graves Motorsports Yamaha R1 Slip-On Exhaust System Cat-Back Style 07-08

Graves Motorsports Yamaha R1 Slip-On Exhaust System Cat-Back Style 07-08

Our Price: $809.99

RRP: $899.99 save 10%
Part NumberEX40412201
The Graves Motorsports Yamaha R1 07-08 Stainless Steel Cat Back Slip-On Exhaust System is handcrafted here in the USA. This exhaust system features new titanium tapered conical endcap canisters. The s-bends are made from mandrel bent stainless steel tubing and finished in a unique ball burnished finish.

Features:

  • 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 Cat Back Slip-On Exhaust System = 8.0 lbs.
  • Stock Cat Back Slip-On Exhaust System = 9.6 lbs


Click here for installation instructions.

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