Fuel & Air Systems

608 products

Shop the range of aftermarket motorcycle fuel & air system products at Pro Class Custom Parts.

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$2,013.99

ThunderMax is an industry award winning, performance ECM designed specifically for EFI equipped Harley Davidson® motorcycles. This highly advanced, stand-alone tuning system utilizes proprietary A...

THUNDER MAX

$2,013.99

THUNDER MAX

$2,012.99

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$2,013.99

$2,013.99

$2,013.99

$2,013.99

$2,013.99

$2,013.99

Note: Trike Models an updated firmware file prior to installation (Due to traction control / RDRS) Please contact Rollies or support@thunder-max.com for this. Fitment 2024 Touring Models: Road K...

THUNDER MAX

$2,013.99

Does not fit 2019-2020 Trike Models (Due to traction control / RDRS) 2018 Model Trike should not have RDRS. Dealer to confirm BEFORE purchase. ThunderMax is an industry award winning, performance...

THUNDER MAX

$2,013.99

THUNDER MAX

$2,014.99

TECHNO RESEARCH TUNER

$1,539.99

Includes: * VCM-TR4 * 3-in-1 cable (Includes 4 pin, 6 pin & 2021 plug) * USB Cable * Digital Tune License Master Key * Case MFR PART No: TR4-001-009 ROLLIES PART No: TR4-001-009

PERFORMANCE MACHINE

$1,313.99

Features & Benefits:- * Gloss Black with Contrasting Alloy Accents. * High Flow Element. * This Kit Includes a Rainsock. Tech Tips:- * Replacement Air Filter Element # P02060048 * Rain S...

PERFORMANCE MACHINE

$1,301.99

Features & Benefits:- * UV Resistant Carbon Fiber Construction * CNC Machined Billet Aluminum End Cap * Reverse Cone Filter Element * Stamped Aluminum Logo Badge * Gloss Carbon Fiber with Cont...