Thumper Power Small Block Manifold & Riser Kit Black 

Thumper Power Small Block Manifold & Riser Kit Black (Sold in pairs)
Not compatible with - SoundAdvantage - Silent Choice - Corsa Quick & Quiet.
Use PowerFlow Manifolds with SA Risers
To view and download the PDF line drawing Left Side  CLICK HERE

To view and download the PDF line drawing Right Side  CLICK HERE

To view and download the PDF water hose diagram  CLICK HERE

Thumper Power Small Block Manifold & Riser Kit Black (Sold in pairs)
IMCO's affordable alternative to stock cast iron Chevy manifolds and risers. Our all cast aluminum manifolds and risers will increase Horsepower, RPM, and Torque by 5 to 7% over stock cast iron manifolds and risers at a fraction of the cost. We have designed Thumper Power for everyone whether you're a high performance or family recreation boater. Available with optional hard anodize for corrosion protection (prior to powder coat).

Shift and ECM-EFI brackets are available, go to "Thumper Power Accessories" or "Related Products" at the right side of your screen.