EMI 513 Thunder Exhaust System-BB Chevy With SS Hi Performance Dry PipeEquipped with our performance dry Stainless Steel High Flow Risers, these are our best performing systems. They are a direct replacement for many stock Mercruiser manifolds in Bravo and Alpha applications with exhaust outlets in the stock location (if you have existing exhaust outlets, you should check our dimensions to determine fit before ordering). The long dry risers on these systems is a must with High Performance camshafts to prevent reversion

overall size is 4 1/2" x 12 7/8") Eight slot louver (cutout size is 1 7/8" x 15 1/4" overall size is 2 7/8" x 16 3/8") Ten slot louver (cutout size is 3 5/8" x 19 7/8"

SM has designed an exhaust pattern machining fixture that when attached to the factory cylinder head will allow boring

A non-corrosive case and weather sealed lense assures years of accuracy and durability

We bring to you an extremely high quality exhaust system upgrade

This is the repair kit needed to overhaul the impeller section of a late model MerCruiser sea pump

these transom mount pickups use 1 1/4” tubing to pick up water

New replacement pump

1 Mercruiser Chevy engine

Kits include all necessary hoses and fittings

These Carbon Fiber Panels have a great finish

This lighted switch illuminates white when panel lights are ON and changes to red when the switch is ON

12 volt 55 amp