EMI THUNDER HI PERF SS 496 +3" TALL RISERS ONLY

Eddie Marine EMI Thunder 496 Chevy high performance S-pipe risers are made from stainless steel. They're designed as a solution for exiting exhaust below swim steps. Used with your EMI Thunder manifolds, these risers enable the exhaust to exit underwater at idles, keeping them quiet when you want it most. Their extended length design prevents reversion with most performance aftermarket camshafts. The risers have integral 10mm bungs to accommodate Merc 496 water temp sensors. Standard height and additional 3 in. height models are available.