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EMI Thunder Exhaust System-496 Chevy +3" Taller Risers Colored Finish

EMI Thunder Exhaust System-496 Chevy +3" Taller Risers Colored Finish
 
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System Includes:
  • 1pr. EMI Exhaust Manifolds
  • 1pr. Aluminum Risers
  • Bolts, exhaust and riser gaskets, and fittings.
    * Accessory brackets are sold separately.
EMI Thunder manifolds are hard coat anodized to a military spec throughout to prevent corrosion. Standard with Black, Blue, and Red Fusioncoat finishes.
*Not for use with engines equipped with high performance camshafts!
Prices Starting at: $3,397.00

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Product Code: EMI-652

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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 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 lobe 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 componenets 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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