Free Shipping.

Expert Service.

Call 888-575-6570

Horsepower Inc. Big Bore Throttle Body

(1 review)

Item: 346835

$663.83

Select Your Vehicle - Fitment Guaranteed

Horsepower Inc. Big Bore Throttle Body


  • Flow bench-tested and dyno-proven to deliver increased airflow, horsepower and torque
  • Fully machined and ported internally for unparalleled flow
  • Finish with split shaft design and stainless steel spring
  • Equipped with a sealed double roller bearing for smooth throttle operation
  • Brass throttle blade resists deflection, which helps maintain throttle position accuracy
  • Completely replaces OEM throttle body and manifold; fully compatible with OEM components
  • Bore diameter given for throttle bodies is measured at the butterfly
  • Intake refers to length of intake to cylinder head
  • Made in the USA
Specification Details
Bore Varies (make selection above)
CARB Approved No
Color Black
Country of Origin USA
EFI Type Delphi
Engine Type Twin Cam
Intake Varies (make selection above)
Material Aluminum

Vehicle Fitment


Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.

Harley Davidson
  • FLD Dyna Switchback 2012-2016
  • FLHR Road King 2002-2005, 2007
  • FLHRCI Road King Classic 2002-2006
  • FLHRI Road King 2002-2005
  • FLHRS Road King Custom 2007
  • FLHRSI Road King Custom 2006
  • FLHT Electra Glide Standard 2007
  • FLHTC Electra Glide Classic 2005, 2007
  • FLHTCI Electra Glide Classic 2002-2006
  • FLHTCU Ultra Classic Electra Glide 2005-2007
  • FLHTCUI Ultra Classic Electra Glide 2002-2005
  • FLHTI Electra Glide Standard 2003-2006
  • FLHX Street Glide 2006-2007
  • FLHXI Street Glide 2006
  • FLS Softail Slim 2012-2015
  • FLSTC Heritage Softail Classic 2007-2015
  • FLSTCI Heritage Softail Classic 2001-2006
  • FLSTF Softail Fat Boy 2007-2015
  • FLSTFB Softail Fat Boy Lo 2010-2015
  • FLSTFI Softail Fat Boy 2002-2006
  • FLSTI Heritage Softail 2006
  • FLSTN Softail Deluxe 2007-2015
  • FLSTNI Softail Deluxe 2005-2006
  • FLSTSB Softail Cross Bones 2008-2011
  • FLSTSC Softail Springer Classic 2007
  • FLSTSCI Softail Springer Classic 2006
  • FLSTSI Heritage Springer Softail 2001-2003
  • FLTR Road Glide 2002-2004, 2007
  • FLTRI Road Glide 2002-2006
  • FXCW Softail Rocker 2008-2009
  • FXCWC Softail Rocker C 2008-2011
  • FXD Dyna Super Glide 2007-2010
  • FXDB Dyna Street Bob 2007-2017
  • FXDC Dyna Super Glide Custom 2007-2014
  • FXDCI Dyna Super Glide Custom 2005-2006
  • FXDF Dyna Fat Bob 2008-2017
  • FXDI Dyna Super Glide 2004-2006
  • FXDI35 35th Anniversary Dyna Super Glide 2006
  • FXDL Dyna Low Rider 2007-2009, 2015-2017
  • FXDLI Dyna Low Rider 2004-2005
  • FXDWG Dyna Wide Glide 2005, 2007-2008, 2010-2017
  • FXDWGI Dyna Wide Glide 2004-2006
  • FXDXI Dyna Super Glide Sport 2004-2005
  • FXS Softail Blackline 2011-2013
  • FXSB Softail Breakout 2013-2015
  • FXSTB Softail Night Train 2007-2009
  • FXSTBI Softail Night Train 2001-2006
  • FXSTC Softail Custom 2007-2010
  • FXSTD Softail Deuce 2007
  • FXSTDI Softail Deuce 2001-2006
  • FXSTI Softail Standard 2001-2006
  • FXSTS Springer Softail 2001-2005
  • FXSTSI Springer Softail 2001-2006

Customer Reviews

Write Review

Big Bore Throttle Body

By   on  Verified Purchaser

Great add on to the bike 05 Electra Glide 103 Screaming eagle really woke it up with addition to the power commander.


How many stars would you give this product? Write a review.

Write Review

Questions & Answers

Ask Question

Does this unit come complete with injectors ? What size injectors ? stock throttle cables ?

considering this unit to replace my stock cable operated 46mm unit when I make other upgrades to the cyl. heads.

There are no injectors or sensors included with this throttle body. You are to re-use the OEM components with this unit. This make installation simple since no machining or modification of the stock parts is required to complete the installation. Just swap out your stock components and you're all set!

By Staff
Answer Question

Have a question? Please ask our experts and customers who own this product.

Ask Question