TR1 Intake Manifold Upgrade Kit

Intake Manifold Upgrade Kit enables your TR-1 naturally aspirated engine to produce more horsepower by delivering increased air flow. Precision machined billet sleeve directly replaces restrictive mesh element in OEM plastic intake manifold. Provides improved low end punch and mid-range pull. Includes detailed installation instructions. Requires RIVA Power Filter Kit to meet U.S. Coast Guard certified flame arrestor requirements.