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HPi 55mm Big Bore Black Throttle Body (HPI-55D6-18B)
Includes throttle body, CNC ported intake manifold, throttle cable bracket, intake flanges and seals Flow bench-tested and dyno-proven to deliver increased airflow, horsepower and torque Brass...$839.90$784.95 -
HPi "Yellow Band" Fuel Injectors (HPI-D1NJ-1)
Recommended for "Big Inch" engines with large plenums (120 hp or greater) 43% increase in flow over stock injectors Made in the USA 6.2 gm/sec. Compatible...$305.97$238.80 -
HPi 58mm Max Flow Black Throttle Body (HPI-58D1-76B)
Completely replaces OEM throttle body and manifold; fully compatible with OEM components Specifically designed for larger cubic inch motors that require substantial airflow Equipped with a sealed...$946.90$724.68 -
HPi Intake Flange Set (HPI-IF-6E)
CNC-machined 6061 billet aluminum construction Will not crack or warp like some forged flanges Made in the USA Compatible Vehicles Years Make Make Notes 2004-2005 Harley-Davidson Dyna Low...$69.50$60.84 -
HPi Fuel Pressure Regulator (HPI-DPR-1)
Engineered for a direct fit in most OEM fuel-injection applications Designed for greater fuel delivery Made in the USA NOTE: For '95-'98 Touring models with Magnetti Marelli EFI it will...$137.98$112.41