RIVA Intake Manifold Upgrade Kit For Yamaha 1.8L Engines - Upgrade intake kit for Yamaha 1.8L models

Upgrade intake kit for Yamaha 1.8L models

The RIVA Intake Manifold Upgrade Kit enables Yamaha 1.8 Liter naturally aspirated engines to produce more horsepower by increasing air flow. This precision-tapered billet sleeve directly replaces the restrictive mesh element inside the intake manifold, providing noticeable low-end punch and mid-range pull. Installation is quick and easy, with RIVA testing confirming that the stock ECU will compensate for the increased air flow.

Note: Requires Coast Guard approved aftermarket filter kit to comply with flame arrestor requirements. Designed for closed course competition use only. Use on public lands and/or waterways in California is illegal.

Fits various Yamaha models including FX, VX, GP, and FZ series from 2008 to 2025. See compatibility for full fitment details.