Big Block Stainless Steel "A" Risers 3" 

Big Block 3" Stainless steel "A" risers are designed for stock Mercruiser Bravo exhaust with 3" riser block between manifold & Riser. tip locations should be 3" higher then stock. 3/4"npt fitting is used on front of pipe for thermostat housing that have (4) 1" hoses water to go to exhaust manifolds if needed click on (ADD BUNG). Shift bracket, ECM, or EFI brackets available as bolt on or welded to the risers.To order see PowerFlow Accessories or Related Products. (Sold in pairs)