Fuel & Air Systems

591 products

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

$324.99

Features & Benefits:- * Also Fits Keihin Butterfly Carburettor. * # 410 Manifold. * This manifold can also be used as a stock replacement on 1984-1989 Evo Engines in lieu of the original compl...

ARLEN NESS

$373.99

* CNC Machined from Billet Aluminum * Chrome Finish with Aluminum Accent Beveled Edges * Includes Mounting Hardware * Fitment: Arlen Ness Stage 1 Big Suckers

QUANTUM FUEL SYSTEMS

$372.99

Features & Benefits:- * OEM or better performance * Polished corrosion-resistant case to help minimize seizing during non-operation * Specifically designed for quiet operation * Drop-in replac...

ARLEN NESS

$373.99

* CNC Machined from Billet Aluminum * Black Anodize Finish with Aluminum Accent Beveled Edges * Includes Mounting Hardware * Fitment: Arlen Ness Stage 1 Big Suckers

ARLEN NESS

$373.99

* CNC Machined from Billet Aluminum * Features Ball Mill Aluminum Accents Around Face of Intake Cover * Black Anodize Finish with Aluminum Accent Beveled Edges * Includes Mounting Hardware * Fit...

QUANTUM FUEL SYSTEMS

$372.99

Features & Benefits:- * OEM or better performance * Polished corrosion-resistant case to help minimize seizing during non-operation * Specifically designed for quiet operation * Drop-in replac...

$337.99

Features & Benefits:- * Big Twin 1995-2006 Air Filter Replacement Gasket # JGI-29313-95 * Sportster 1995up Air Filter Replacement Gasket # JGI-29313-95 * Big Twin 2006up Throttle Body to Backi...

DAYTONA TWIN TEC

$326.99

* VOES Kit * Vacuum switch with higher switching level of 6-7 In-Hg vacuum helps eliminate spark knock under light load and throttle roll-on * Includes mounting bracket and electrical terminals T...

QUANTUM FUEL SYSTEMS

$378.99

Features & Benefits:- * OEM or better performance * Polished corrosion-resistant case to help minimize seizing during non-operation * Specifically designed for quiet operation * Drop-in replac...

Sold Out

$293.99

Features & Benefits:- * Also Fits Sportster 1979-1982 with 900cc & 1000cc Engines & S&S Super E & B Carburettor. * # 220 Manifold. * Band Style Manifold. People who Buy this P...

Sold Out

$293.99

Features & Benefits:- * Also Fits Sportster 1957-1978 with 900cc & 1000cc Engines & S&S Super B & E Carburettor. * # 220 Manifold. * O’Ring Style Manifold. * Bore = 1-7/8″. Pro...

Sold Out

QUANTUM FUEL SYSTEMS

$432.99

Features & Benefits:- * OEM or better performance * Polished corrosion-resistant case to help minimize seizing during non-operation * Specifically designed for quiet operation * Drop-in replac...

GOODRIDGE

$303.99

Goodridge EFI Lines: These durable and aesthetically striking assemblies feature black PVC coated braided hose, and Teflon inner liner with tough chrome plated steel valves and hardware. Tech Tip...

GOODRIDGE

$303.99

* Replaces OEM # 62350-07C * Replaces OEM # 62351-07C Goodridge EFI Lines: These durable and aesthetically striking assemblies feature choice of clear or black PVC coated braided hose, and Teflon ...

Sold Out

$272.99

Features & Benefits:- * Includes 1 x .025 Intermediate Jet. * Includes 1 x .0265 Intermediate Jet. * Includes 1 x .028 Intermediate Jet. * Includes 1 x .0295 Intermediate Jet. * Includes 1 x ....