SpeedFactory Racing B/H/F Series HD Detent Spring Kit Brake Discs 53521-S5A-003

53521-S5A-003

20470SA011

We changed the intake duct to a forward-facing two-layer structure so that the intercooler can be cooled and the engine can be taken in from near the front grille

Honda NA's intake system is very clever and important

Skunk2’s professional line of high-lift and duration racing camshafts

SpeedFactory Racing B/H/F Series HD Detent Spring Kit Brake Discs 53521-S5A-003We have been using these springs in our own transmission builds for years, and now you can too ! Add enjoyment to your driving experience with this simple to install and inexpensive upgrade that gives improved feel and shift action as you engage each gear. The SpeedFactory HD Detent Spring Kit is a set of upgraded coil springs that increases the positive ratcheting feel of your transmission, with an over 80% increase in spring rate over the soft