Horsepower Big Bore 55mm Throttle Body HPI-55D6-18

Horsepower Big Bore 55mm Throttle Body HPI-55D6-18
Flow bench-tested and dyno-proven to deliver increased airflow, horsepower and torque Fully machined and ported internally for unparalleled flow Feature a stainless steel shaft and spring Equipped with a sealed double roller bearing for smooth throttle operation Brass throttle blade and shaft resist deflection which helps maintain throttle position accuracy Completely replaces OEM throttle body and manifold; fully compatible with OEM components Made in the USA

*Images in the listing are for reference only. Actual product may vary.
*Tinted shield sold separately for all Full-Face helmets unless otherwise noted.
  • Brand: Horsepower
  • Flow bench-tested and dyno-proven to deliver increased airflow, horsepower and torque
  • Fully machined and ported internally for unparalleled flow
  • Feature a stainless steel shaft and spring
  • Equipped with a sealed double roller bearing for smooth throttle operation
  • Brass throttle blade and shaft resist deflection which helps maintain throttle position accuracy
  • Completely replaces OEM throttle body and manifold; fully compatible with OEM components
  • Made in the USA
  • Our phone number is 713-946-2400.

    Customer Service: Our goal is provide you with the best and easiest internet purchasing experience. Feel free to contact us with any questions. Our phone hours are Monday thru Friday 10am-5pm(Central). We try our best to answer all emails within 12 hours. Product images and colors may vary slightly. Some full face helmets are shown with tinted outer shield for display purposes only. Tinted shields are not included on Bell or other full face helmets unless otherwise noted. *(A sunshield is a tinted shield).

    Images: Images in the listing are for reference only and should only be used as such. Please use the manufacturers part number (MPN) to confirm the item that will be shipped.

    Track Your Package: Tracking information will be Emailed to you, placed in the Ebay transaction page as well as put in your PayPal transaction page when the item is shipped. Please allow 24 hours for the number to become active. USPS has been re-issuing tracking information and the number may show to have already been delivered until re-activated. International orders will have a 1 to 5 business day handling time.

    Feedback: We are committed to providing a great online shopping experience. If, for any reason, you feel your experience with us was less than perfect, please contact us right away. Please communicate with us and we will do our best to help.

    Shipping Info: We reserve the right to choose a different carrier for shipment if we feel that your item may be handled in a professional way to your destination using that carrier. If your address is a PO Box, FPO/APO, or in Alaska, Hawaii or Puerto Rico, we reserve the right to ship the item(s) USPS Parcel post.

    We will normally ship all orders within 1-4 business days once payment has been verified. Pazzo Levers normally ship within 4 business days once colors and lever length are verified and payment has cleared.

    Discounts, promotions, codes or price matching does not apply to the following brands at the manufacturers request; Joe Rocket, Rapid Transit, Power Trip, or all Official Licensed Products.

    All delivery times are estimated and are the responsibility of the shipping company This seller cannot be held responsible. Please read and understand all policies before your purchase.


  • All returns/exchanges must include our Authorization form. This form will include all information to help us process the return/exchange quickly and correctly. Find it here.

    Returns: Buyer is responsible for all shipping costs (both ways) on returns plus a restocking fee. If an item shipped for free, a nominal shipping fee (usually $12.99 for domestic) will be required by check or PayPal transfer.

    Exchanges: Buyer is responsible for shipping the item to us as well as the shipping cost for the new item.

    Merchandise can be returned or exchanged only if in original manufacturer's packaging, same condition as sold, with all literature/documentation and attached tags, instructions, etc. Worn items, used items or any items without the tags will not be accepted. Please, do not ship an item only in its original manufacturers packaging. Please use a cardboard box or other adequate packaging to ensure your return or exchange is not damaged on the way back to us.
  • %REPLACE%