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EMI Thunder Exhaust System - BB Chevy With Standard Aluminum 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: $2,237.00

WARNING- Cancer and Reproductive Harm: Proposition 65

Product Code: EMI-510

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Description

Technical Specs

Warranty Information

A great economical performance upgrade for stock engines. These systems are equipped with our standard cast aluminum short risers. They are a direct replacement for many stock Mercruiser manifolds in Bravo and Alpha applications using exhaust selector systems or Merc "S" pipes 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. With this system using short aluminum risers, we DO NOT recommended them for use with engines with aftermarket camshafts. 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 Gloss Black Fusioncoat Finish
Custom Blue or Red Fusioncoat Finishes available

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