4" OD to 3.5" OD

4" OD to 3.5" ODThis carbon fiber intake reducer is 4" OD on one end and 3 1 2" OD on the other. Weighs 35 40% less than aluminum, yet is just as strong. Very attractive appearance. 6" long. Our carbon fiber is 3K carbon fiber embedded in clear epoxy (wet process) and polished. Each of the bundles you see in the item consists of 3000 tiny fibers of pure carbon. The weave is twill, which means the bundles going one direction are spaced slightly wider than the bundles

Recommended clamps are 94100-0238 on the small end and 94100-0275 on the big end

Special 4" leg lengths

Recommended clamps are 94100-0350

Recommended clamps are 94100-0650

This 3-1/4" silicone coupler is 3 inches long

Recommended clamps are 94100-0450 on the small end and 94100-0550 on the big end

Thick wall - Recommended clamps are 94100-0300

This spring-loaded T-bolt clamp is used on 4-1/2" ID (5-ply) silicone hoses

This 45 degree silicone elbow is 3-1/2" ID

for less turbulence

This reducing hump hose connects 8" OD and 6" OD intake tubes

Recommended clamps are 94100-0188 on the small end and 94100-0212 on the big end