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EMI Thunder Exhaust System-BB Chevy With SS Hi Performance Dry Pipe Polished 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.

*Not for use with engines equipped with high performance camshafts!

Price: $3,631.00

WARNING- Cancer and Reproductive Harm: Proposition 65

Product Code: EMI-513P

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Description

Technical Specs

Warranty Information

Equipped with our performance dry 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 long dry risers on these systems area must with High Performance camshafts to prevent reversion (water ingestion). Standard length on these risers is 32" but they are made to order and can be built to a custom length at no extra cost (un usually long applications may require an additional charge). For custom pipes provide us a mock PVC example showing length from your front cylinder head bolt to the end of the tailpipe (See Mock-up Example images) With dry risers, the engine discharge water and exhaust do not mix until the very end of the tailpipe, outside of the boat, reducing the chance of reversion. They will be quite a bit louder than a standard set of risers. Systems with polished finish have no internal or external coating and are not protected from corrosion and have no warranty.

Features
Features

Large individual runners for ultra-efficient exhaust flow and velocity
SS high performance dry pipe risers offer the ultimate performance with 32 in. stainless steel risers
*See our systems dimensions in the Technical Specs below to confirm fitment. For custom pipes see PVC mock-up in images.
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
Constructed from the highest strength 356 aluminum

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