Hushmat Ultra Bulk Kit Heat and Sound Barrier 12 x 23" Sheet 1/8" Thick Rubber - Black H776C08 and (1) 6AN O-ring return

and (1) 6AN O-ring return

They feature an LT1-style raised runner intake port design for increased air-flow and ultimate performance

Fits 1967+ Oldsmobile 260

2016-2018 Chevrolet Silverado 2500 HD

Hose / Tube Separators

Hushmat Ultra Bulk Kit Heat and Sound Barrier 12 x 23" Sheet 1/8" Thick Rubber - Black H776C08 and (1) 6AN O-ring returnTreat a compact vehicle with one kit. Reduce that aftermarket engine, exhaust drone, road noise, vibration and the noise that disrupts your ride and reduce the heat that comes from engine, headers, exhaust and catalytic converter with one USA Made material light weight HushMat UltraHushmat produces specialized rubber insulation. This insulation not only insulates your vehicle from the heat of the road but also reduces unwanted vibration and noise. #1