REDS Manifold S .21 Off-Road S-Series

REDS Manifold S .21 Off-Road S-Series

CL210005 REDS Manifold S .21 Off-Road S-Series

This is the REDS Engines 3.5cc Short Off-Road Manifold. This manifold is ideal for the S Series REDS Engines 3.5cc .21 nitro engines. Package includes one gasket, two long springs. This manifold will help provide a smoother torque delivery but with increased top speed.

Manifold length impacts .21 nitro engines by affecting exhaust pressure waves. Longer manifolds create resonant waves that boost low-end torque by improving intake efficiency and scavenging. However, this creates backpressure, limiting high-RPM power.

Shorter manifolds offer less backpressure for improved high-RPM performance but sacrifice low-end torque. Choose the length based on your needs: balance (mid-length), low-end grunt (longer), or high-end power (shorter). Remember, this is just one factor in engine tuning, and experimentation is key.