EMI Thunder Exhaust System - SB Chevy with High Perf SS Risers
EMI Thunder Exhaust System - SB Chevy with High Perf SS Risers
EMI Thunder Exhaust System - SB Chevy with High Perf SS Risers
EMI Thunder Exhaust System - SB Chevy with High Perf SS Risers

EMI Thunder Exhaust System - SB Chevy with High Perf SS Risers

$3,354.95

EMI-411P

EMI Thunder Exhaust System - SB Chevy with High Perf SS Risers

Equipped with our performance Stainless Steel High Flow Risers, these are our best performing systems. They 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, you should check our dimensions to determine fit before ordering). 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:
  • 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 Fusioncoat Finish
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!

A Warranty Unlike Any Other!
All EMI Thunder exhaust systems (except systems with a polished finish) come
with a limited 5 year warranty against defects and failure to the original owner!

Color
Color: Bright Polished Finish

Pairs well with

⚠ WARNING: Cancer and Reproductive Harm -www.P65Warnings.ca.gov