Riva free exhaust for Yamaha Replaces the restrictive sound suppression system on GP1300R ™. Improves engine performance by reducing back pressure and harmful detonation. Easy installation does not require cutting pipes. IJSBA Limited & Superstock legal.
RIVA Free Exhaust for Yamaha EX Replaces the restrictive sound suppression system located between the water area and the outlet of the hull of your EX boat. Improves engine performance by reducing back pressure and harmful detonation. Constructed from bent mandrel aluminum tubing with rolled bead ends for securing couplers. Tube is powder coated to...
Free exhaust GP1200R / GP800R Replaces the GPR restrictive removal system. Provides a reduced back pressure that improves engine performance and reduces harmful detonation. Easy installation with outstanding results.
Free Flow for Yamaha 2 strokes