Billet Head Kit / POL 800 CFI ('08+) DOMES:High altitude 41CC This muffler won't lose horsepower

This muffler won't lose horsepower like some of the glass pack style mufflers can do

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Short version:Chrome = looks coolBlack ceramic = works harder

Sensor adapter solves peak RPM loss problems

Billet Head Kit / POL 800 CFI ('08+) DOMES:High altitude 41CC This muffler won't lose horsepowerEasy bolt on power for your 800 CFI! This head has twice the cooling capacity to keep your motor running cooler to maintain horsepower by staying below the 120 degree timing curve. We offer two different dome configurations: IQ800 37. 5 is a 12. 5: 1 compression ratio that works great in the 6000 9000 ft range and bolts on 7 8 HP in the mid range and 5 6 HP peak. IQ800 41 is our lower 11. 8: 1 compression version for sea level to 6000 ft and gains 4 5