EMI Thunder Exhaust System-SB Chevy With SS Hi Perf Dry Pipe Polished Finish
Equipped with our performance dry Stainless Steel High Flow Risers, these are our best performing systems. EMI Thunder exhaust systems 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, please check our dimensions to determine the correct fit before ordering! We are not responsible for exhaust systems that do not match up to existing holes in your boat's transom). The long dry risers on these systems are a must with High Performance camshafts to prevent reversion (water ingestion). Standard length on these risers is 36" but they are made to order. Just provide us a length from your front cylinder head bolt to the end of the tailpipe. In extremely long applications, there may be an extra charge. With dry risers, the engine discharge water and exhaust do not mix until the very end of the tailpipe, outside of the boat, reducing the chance of reversion. They will be quite a bit louder than a standard set of risers.