FAST LSXR Replacement Runner

The FAST LSXR Replacement Runner is an intake manifold runner for FAST LSXR polymer intake manifolds on GM LS engines. Use it to replace a damaged or worn runner, or to swap in a runner when you service or modify the manifold. It is also listed as an intake manifold runner control valve.

Key Features:

• Made for the FAST LSXR intake manifold, which FAST developed with airflow specialists at Racing Head Service
• Fits the LSXR modular manifold design, which lets you disassemble the manifold and remove runners for porting
• The LSXR manifold uses an advanced polymer. FAST says this gives it lighter weight, more strength and better heat dissipation than aluminum aftermarket intakes
• Sold individually by runner position, so you can replace only the runner you need instead of buying a full runner set

FAST is a well-known maker of performance induction and engine management products. These replacement runners let you keep an LSXR manifold in service without buying a new manifold.