SPI Y-Pipe/Manifold Ceramic Coated, Arctic Cat Catalyst 858

Straightline Performance polished ceramic Y-pipe manifold for Arctic Cat Catalyst 858 models. The manufacturer-claimed 2 horsepower gain and improved exhaust flow increase mid-range torque, throttle response and acceleration. The polished ceramic coating provides excellent heat management, helps reduce under-hood temperatures and protects the manifold from corrosion.

Direct bolt-on installation makes this an easy performance upgrade. When installed on its own, no fuel changes, clutching changes or calibration adjustments are required according to the manufacturer. Suitable for both stock and modified machines.

Fitment: Arctic Cat Catalyst 858, M 858, Riot 858 and ZR 858, model years 2025–2027.
Weight: 3 lb / 1.36 kg
Dimensions: 11 × 9 × 5 in / 27.94 × 22.86 × 12.70 cm
Package includes: Polished ceramic Y-pipe manifold and installation instructions.