50mm Velocity Stack Spacers for ITB Kit

Product information

PRE-ORDER!! This kit is ready for shipment after week 2 of januari

Get the most out of your individual throttle body setup with our 50mm Velocity Stack Spacers. These spacers allow you to customize your intake length to suit your performance needs and engine configuration, giving you the ideal runner lenght for setup:

CNC machined, precision fit with our range of ITB Kits, comes with required O-rings for sealing

• Pair with 30mm Velocity Stacks: Achieve a total stack length of 80mm
• Pair with Default 80mm Stacks: Create a total stack length of 130mm

Intake runner length significantly impacts engine performance, with longer runners enhancing low-end torque and drivability, while shorter runners boost high-RPM horsepower. The optimal runner length depends on the engine's powerband needs, Standard Mx-5 engines seem to benefit from longer stacks, optimal is a 130mm combination with our kit. This doesn't always fit with ABS or RHD unfortunately, hence we choose for 80mm as default.

Very high revving ITB engines may benefit from the shorter 30mm stacks found here:

Combinations with these adapters with 30mm stacks and a filter baseplate can be made aswell, for example with our Pipercross PX600 Velocity Stack Package for Hummelink ITB kit NA NB or a self-composed combination

Before purchase, please check your engine bay clearance to ensure proper fitment! Contact us when you're in doubt.