Fatt Azz Ceramic Expansion Pipe for Ski-Doo 850 E-TEC NA // SKU: 01-214-C

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$689.95 USD
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Fatt Azz Ceramic Expansion Pipe for Ski-Doo 850 E-TEC NA // SKU: 01-214-C

Unleash an aggressive +10 to 12 peak horsepower gain and massive mid-range punch on your naturally aspirated Ski-Doo 850 E-TEC with the Bikeman Performance Ceramic Fatt Azz Pipe. Developed through extensive dyno and mountain field testing, this high-output expansion chamber optimizes exhaust scavenging to deliver maximum track horsepower whether boondocking deep powder, climbing steep chutes, or hammering trails.

Setting a new standard in 850 E-TEC performance, the Fatt Azz pipe features industry-first changeable internal stinger technology. By allowing you to adjust internal stinger diameters, you can maintain optimal pipe pressure at varying altitudes or build ultra-fast heat for drag racing. Finished in a premium chrome ceramic coating, it retains internal exhaust heat for instant throttle response while lowering under-hood temperatures.

Key Performance Features

  • +10 to 12 HP Peak Gains: Delivers proven horsepower gains across the mid-range and top-end powerband over the stock expansion chamber.

  • Changeable Internal Stinger Tech: Industry-first swappable stinger design allows custom tuning of internal pipe pressure for sea-level, high-altitude, or race setups.

  • Premium Ceramic Coated Finish: Thermal-barrier ceramic coating traps heat inside the pipe to accelerate exhaust gas velocity while protecting under-hood plastics from extreme heat.

  • Flexible Silencer Compatibility: Engineered as a direct bolt-on upgrade that seamlessly mates to your stock OEM muffler or Bikeman lightweight performance silencer.

  • Rapid Thermal Response: Designed to build and hold operating pipe temperature quickly, eliminating bog when hitting the throttle off-idle.

Interchangeable Stinger & Elevation Tuning Guide

Pipe backpressure directly impacts horsepower when atmospheric pressure changes. Swap stingers in minutes to dial in your pipe for specific riding conditions:

  • Sea-Level / Low Elevation (Included): Ships standard with a 2.0" stinger insert engineered for sea-level to low-altitude trail riding (0–3,000 ft).

  • Mid-Elevation Stinger (Part #: 01-214-C-M): Smaller diameter stinger insert designed to compensate for lower air pressure at mid-altitudes (3,000–6,000 ft).

  • High-Elevation Stinger (Part #: 01-214-C-H): Restores pipe pressure and throttle response in thin mountain air (6,000+ ft).

  • Race Applications: Running a smaller stinger size causes the pipe to react much faster, drastically reducing required pre-heating time on a rev stand prior to launches.

Product Specifications & Fueling Requirements

  • SKU: 01-214-C

  • Engine Fitment: Ski-Doo 850 E-TEC Naturally Aspirated (Gen4 & Gen5 Chassis)

  • Finish: High-Temperature Polished Ceramic Coating

  • Fuel Requirement: Minimum 91 Octane Premium Pump Fuel

  • Required Tuning Hardware: A performance fuel controller (or BMP ECU Tune) and a Bikeman Performance Intake Manifold are required to reach full +12 HP gains safely.