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NOTE: Due to the manner the ignition wires attach to the coil on Ski-Doo and Yamaha models, it's very difficult to properly replace the wires. On these models we recommend replacing the plug caps only.
*Each universal fit wire is 17 inches long and can be cut to fit. For longer lengths, please inquire.
Instruction Sheets:
37-18
37-20
37-23
Universal Learn More
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These SLP Power Dome billet heads provide an
additional 3 horsepower peak with a much more responsive midrange. They feature interchangeable chambers (Domes) for use in low or high altitudes, and utilize the stock water cover for stock appearance.
These heads require the use of a DynoJet PCV or PCFC fuel controller with SLP’s pre-programmed Stage 3 kit map. Any other combination of parts will require different fuel mapping in the PCV or PCFC, and the customer will be personally responsible to create their own fuel map.
Instruction Sheets:
Head Instructions Learn More
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Pink Exhaust Valve Spring - Load: 4.7 lbs @ 1" and 7.1 lbs @ .63"
-Recommended on 2008-10 Polaris 800 CFI models at elevations above 5000'.
Yellow Exhaust Valve Spring - Load: 2.4 lbs @ 1" and 3.6 lbs @ .63"
-Recommended on 2001-05 Polaris 700 and 2002-05 800 Edge/RMK models at elevations above 6000'.
White Exhaust Valve Spring - Load: 1.6 lbs @ 1" and 2.8 lbs @.63"
Sold per each. 2 springs required per motor. Learn More
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Required for eliminating oil injection:
Crankcase Plate bolts in place of the oil pump.
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Get everything you need to upgrade your higher temp thermostat to the new style lower temp (110° F) thermostat found on the 2018 and newer models for improved consistency and performance. This upgrade kit is intended for use with an SLP Power Dome Head. If you already have the SLP head set, purchase of the head skull (Part #12-422) will be required to use the SLP domes with the 2018 upgrade kit. If you don’t have the SLP head set, purchase the appropriate 2018 SLP Power Dome Head set and then use this upgrade kit for the conversion. Upgrade kit includes a new head cover, thermostat, seal, o-rings and all necessary hardware.
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SLP has done it again! Providing more horsepower through combustion chamber design, these billet heads for the Polaris Patriot 850 engine deliver an
impressive 6 horsepower peak with an
additional 5 to 7 midrange. They are designed to maintain compatibility with 91 octane pump fuel for optimal reliability and consistency. Currently available for use with stock engine/pipe configuration as well as an SLP lightweight silencer and an SLP intake kit (SLP Stage 1.5, which provides a total of 7.8 horsepower peak) with no fuel management changes required.
for 2019-23 Polaris 850 Axys and Matryx Models
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SLP has done it again! Providing more horsepower through combustion chamber design, these billet heads for the Polaris Patriot 850 Boost engine deliver an
impressive 6 horsepower peak. They are designed to maintain compatibility with 91 octane pump fuel for optimal reliability and consistency. Currently available for use with stock engine/pipe configuration as well as an SLP lightweight silencer and an SLP Powder Valve Intake Kit (SLP Stage 1.5, which provides a total of 7.8 horsepower peak) with no fuel management changes required.
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