Horsepower Inc (HPI)

Horsepower, Inc HPI-58D6-18B - Throttle Body - Black - 58/1.80

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...

Horsepower, Inc HPI-58D6-76B - Throttle Body - Black - 58/1.76

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...

Horsepower, Inc HPI-55D6-16B - Throttle Body - Black - 55mm/1.66

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...

Horsepower, Inc HPI-51D6-16B - Throttle Body - Black - 51mm/1.66

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...

Horsepower, Inc HPI-55MF6-18B - Throttle Body - Black - 55/1.80

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...

Horsepower, Inc HPI-55D6-18B - Throttle Body - Black - 55mm/1.80

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...

Throttle Body - 58/1.80

FeaturesCompletely replaces OEM throttle body and manifold; fully compatible with OEM componentsSpecifically designed for larger cubic inch motors that require substantial airflowEquipped with a...

Throttle Body - 58/1.76

FeaturesCompletely replaces OEM throttle body and manifold; fully compatible with OEM componentsSpecifically designed for larger cubic inch motors that require substantial airflowEquipped with a...

Throttle Body - 55mm/1.66

FeaturesIncludes throttle body, CNC ported intake manifold, throttle cable bracket, intake flanges and sealsFlow bench-tested and dyno-proven to deliver increased airflow, horsepower and torqueBrass...

Throttle Body - 51mm/1.66

FeaturesIncludes throttle body, CNC ported intake manifold, throttle cable bracket, intake flanges and sealsFlow bench-tested and dyno-proven to deliver increased airflow, horsepower and torqueBrass...

Throttle Body - 55/1.80

FeaturesCompletely replaces OEM throttle body and manifold; fully compatible with OEM componentsSpecifically designed for larger cubic inch motors that require substantial airflowEquipped with a...

Horsepower, Inc HPI-51D6-17B - Throttle Body - Black - 51mm/1.71

FeaturesIncludes throttle body, CNC ported intake manifold, throttle cable bracket, intake flanges and sealsFlow bench-tested and dyno-proven to deliver increased airflow, horsepower and torqueBrass...

Throttle Body - 55mm/1.80

FeaturesIncludes throttle body, CNC ported intake manifold, throttle cable bracket, intake flanges and sealsFlow bench-tested and dyno-proven to deliver increased airflow, horsepower and torqueBrass...

Throttle Body - 51mm /1.71

FeaturesIncludes throttle body, CNC ported intake manifold, throttle cable bracket, intake flanges and sealsFlow bench-tested and dyno-proven to deliver increased airflow, horsepower and torqueBrass...

Intake Flange - 01-05 Big Twin

FeaturesCNC-machined 6061 billet aluminum constructionWill not crack or warp like some forged flangesMade in the U.S.A.Includes sealsSpecs Material: Aluminum Riding Style: Street Units: Set...

Horsepower, Inc HPI-IF-6L - Intake Flange - '06-'17 Big Twin

FeaturesCNC-machined 6061 billet aluminum constructionWill not crack or warp like some forged flangesMade in the U.S.A.Includes sealsSpecs Finish: Raw Riding Style: Street Features: Includes Gaskets...

Throttle Body - 01-05 - 51mm/1.66

FeaturesIncludes throttle body, CNC ported intake manifold, throttle cable bracket, intake flanges and sealsFlow bench-tested and dyno-proven to deliver increased airflow, horsepower and torqueBrass...