SeaingDouble

Hello- My father is resurrecting an 86 Scarab 38 KV. Its been sitting about 13 years. Anyway, the boat has its twin 400 cyclones rebuilt and ready to go in. We do not want to use the old junk exhaust manifolds. Where is a good place to get some nice performance manifolds/headers for this boat? Any help is appreciated.

Crazyhorse

Hardin Marine, Eddie Marine, Lightning headers, CMI, Stainless Marine, several more, all make high quality marine exhaust systems. Many are advertisers here and offer OSO member discounts.

Too Old

You may want to consider staying with a good manifold and riser system for your mild horsepower application. They'll give you the performance you need and something the tubular headers wont.......a five year warranty!

Both EMI and Stainless Marine are warrantied for five years. I imagine there are others too.

Good luck with your decision.

SeaingDouble

Yes, I'm sure we don't NEED real tubular headers, but we were looking for something better than stock, both in performance and aesthetics.

2112

Then try Stellings. Trick is now a dealer

SeaingDouble

Just looked at the EMI website...Those systems are just what I was looking for. I'm thinking about the EMI-511 system. I emailed them to see if it would fit my boat.
Thanks

Too Old

For more on EMI Thunders check HERE.

Crazyhorse

My boat is equipped with Stainless Marine's Hi-Torque manifolds and stainless risers. I prefer these over the EMI Thunder system mainly because there are no coolant passages in the manifold/riser mating surfaces.

Whiteknuckle

If you go with the EMI Thunders spend the extra money and get the stainless risers and not the standard cast. They are less restrictive.

KAAMA

iTrader: (1)

I agree.....you want an aftermarket exhaust system that has a ONE PIECE, ALL STAINLESS tailpipe system. It's kinda like having the tailpipe and riser all in one. You can get the manifold type exhaust systems such as the Stainless Marine, GIL, EMI Thunders, etc, with the one piece all stainless tailpipe/riser, but you may have to specify what you want just to make sure.

The aluminum made aftermarket manifold systems will be much lighter than those stock Merc heavy cast iron anchors you have now and they will sound much better, dress up your engine compartment a lot nicer---especially with all polished stainless tailpipes, but you definately DO NOT want a riser/tailpipe that is cast and/or has a bunch of 90* elbows---too restrictive and will kill HP/Torque for what you want---besides, they look like sh#t !!!