Velocity Stacks with Backing Plates / '17-'24 M8

Feuling billet velocity stacks with backing plates that add flow for ported, big-throttle-body M8 builds.

A performance intake piece for M8 engines that have moved past stock. Feuling machines these 3 inch tall velocity stacks from billet aluminum to fit the M-Eight throttle body bolt pattern, with a 4 inch opening tapering internally to a 2.4 inch ID matched to 62mm throttle bodies. They deliver horsepower and torque gains on engines running modified and ported heads, intakes, and larger throttle bodies, a strong choice for track use. Sold each, in black or chrome.

Features of the Velocity Stacks

• 3 inch tall billet aluminum velocity stack
• Fits the M-Eight throttle body bolt pattern
• Horsepower and torque gains on ported heads and intakes with larger throttle bodies
• Black or chrome finish
• Made in the U.S.A.

Specifications

• 4 inch opening with internal taper to 2.4 inch ID
• Matched to 62 mm throttle bodies
• Sold each

Fitment

Fits '24 FLHTK/FLTRK/FLHRXS, '17-'23 FLHT/FLHR/FLHX/FLTR except '23 FLHXSE/FLTRXSE, '17-'24 Harley Trike, and '18-'24 Softail. ⚠️ VERIFY your throttle body and intake setup before ordering.