{"product_id":"emi-thunder-exhaust-system-bb-chevy-with-high-perf-ss-risers","title":"EMI Thunder Exhaust System - BB Chevy with High Perf SS Risers","description":"\u003cdiv\u003e\u003cb\u003e\u003cspan\u003eEquipped with our performance 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 16\" long riser on these systems is a must with High Performance camshafts to prevent reversion (water ingestion). NOTE: Engines using larger than stock, aftermarket camshafts may require a dry tailpipe system to prevent reversion. Provide us with your camshaft's lope separation angle and duration at .050\" before choosing an exhaust system! These longer risers WILL NOT work with Selector systems or stock \"S\" pipe connections. Brackets to keep all of the stock components in their existing locations (shift quadrant, ignition module and oil filter bracket) are available and sold separately.\u003c\/span\u003e\u003c\/b\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e\u003c\/b\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e\u003c\/b\u003eLarge individual runners for ultra-efficient exhaust flow and velocity\u003c\/li\u003e\n\u003cli\u003eDirect replacement for many stock Mercruiser manifolds in Bravo \u0026amp; Alpha apps\u003cbr\u003e\u003ci\u003e\u003cspan\u003e*See our systems dimensions in the Technical Specs below to confirm fitment.\u003c\/span\u003e\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMinimum 10% increase in torque and horsepower\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e316 stainless steel investment cast, one-piece riser flange\/inner pipe\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eStandard 4” exhaust hose connections\u003c\/li\u003e\n\u003cli\u003eIntegral water-cooled exhaust divider\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e70lbs lighter than stock cast iron exhaust systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eFive year limited warranty\u003c\/li\u003e\n\u003cli\u003eConstructed from the highest strength 356 aluminum\u003c\/li\u003e\n\u003cli\u003eThree step coating process for ultimate corrosion resistance\u003c\/li\u003e\n\u003cli\u003eHeat treated to a T-6 condition\u003c\/li\u003e\n\u003cli\u003eMilitary specification Hard-Coat Anodize undercoat\u003c\/li\u003e\n\u003cli\u003eUltra-durable Gloss Black Fusioncoat Finish\u003c\/li\u003e\n\u003cli\u003eCustom Blue or Red Fusioncoat Finishes\u003cspan\u003e available\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cb\u003eA Warranty Unlike Any Other!\u003c\/b\u003e\u003cbr\u003eAll EMI Thunder exhaust systems (except systems with a polished finish) come\u003cbr\u003ewith a limited 5 year warranty against defects and failure to the original owner!\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Eddie Marine","offers":[{"title":"Bright Polished Finish","offer_id":46892868632764,"sku":"EMI-511P","price":3830.95,"currency_code":"USD","in_stock":true},{"title":"Bright Blue Fusioncoat Finish","offer_id":46892868665532,"sku":"EMI-511B","price":3856.95,"currency_code":"USD","in_stock":true},{"title":"Gloss Black Fusioncoat Finish","offer_id":46892868698300,"sku":"EMI-511BK","price":3856.95,"currency_code":"USD","in_stock":true},{"title":"Bright Red Fusioncoat Finish","offer_id":46892868731068,"sku":"EMI-511R","price":3856.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/8676\/8828\/files\/EMI-511_EMI_thunder_BB_chevy_exhaust_PNG_web.png?v=1780436635","url":"https:\/\/eddiemarine.com\/products\/emi-thunder-exhaust-system-bb-chevy-with-high-perf-ss-risers","provider":"Eddie Marine","version":"1.0","type":"link"}