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EMI Thunder Exhaust System-BB Chevy With High Perf SS Risers Colored Finish

EMI Thunder Exhaust System-BB Chevy With High Perf SS Risers Colored Finish


 
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Equipped 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
Prices Starting at: $3,086.00

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Product Code: EMI-511

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Description Technical Specs Warranty Information
 
Equipped 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.
Features
Features:
  • Large individual runners for ultra-efficient exhaust flow and velocity
  • Direct replacement for many stock Mercruiser manifolds in Bravo & Alpha apps
    *See our systems dimensions in the Technical Specs below to confirm fitment.
  • Minimum 10% increase in torque and horsepower
  • 316 stainless steel investment cast, one-piece riser flange/inner pipe
  • Standard 4” exhaust hose connections
  • Integral water-cooled exhaust divider
  • 70lbs lighter than stock cast iron exhaust systems
  • Five year limited warranty
  • Constructed from the highest strength 356 aluminum
  • Three step coating process for ultimate corrosion resistance
  • Heat treated to a T-6 condition
  • Military specification Hard-Coat Anodize undercoat
  • Ultra-durable Gloss Black Fusioncoat Finish
  • Custom Blue or Red Fusioncoat Finishes available

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