Pro Series Billet Aluminum Throttle Body to Manifold Adapter 99-00 Honda Civic Si B/K-Series

Snap Logo Lease for as low as $/week Learn More More Financing Options

Skunk2 Racing

SKU 309-05-0005

shopify Ships Direct from Manufacturer


Skunk2 Racing now offers a solution for installing the Skunk2 Pro Series or Alpha Series B/ D/ F/ H Throttle Body onto the Skunk2 K series intake manifold w/ RBC style flange. Commonly refereed to as K to H manifold swap. The adapter has a 68mm opening as well as an 1/8in NPT port for additional flexibility. Works with B16, B17, B18, B20, D16, F20C, F22A, F23A, H22A, and H23A throttle body.Features:CNC Machined 6061 Billet AluminumAnodized for Corrosion ResistanceMounts to Honda RBC/ RRC Flange68mm Opening1/8 inch NPT PortGasket and Hardware Included

  • Used with the following Skunk2 Intake Manifolds:
  • 307-05-0320
  • 307-05-0325
  • Complement your B to K Throttle Body Adapter with a Skunk2 K to H Intake Manifold Adapter.

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

Financing Options Available - Click Here for Details