Black Part #: 02-123PL

you must remove your ECU and mail it to our Bikeman facility for the Dynojet Bench Flash Unlock service prior to tuning

Full Tune Access: Your included Tune License gives you access to all available tune levels for your machine

True Full Exhaust System: Replaces the restrictive factory one-piece setup with a completely redesigned high-flow header and matching dual-tip exhaust

5" total length including clamps

Arctic Cat 858 High Elevation Head Mod 04-411 Category_Default Category/SLED/Polaris/IQ 700 Black Part #: 02-123PLTHIS HEAD MOD REQUIRES YOU TO SEND IN YOUR STOCK HEAD FOR EXCHANGE Need more power out of your 858 at high elevation Our head mod packs some serious power, No tuning required Pump gas friendly Arm Pulling Torque