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The crossover also makes side exhaust sound MUCH better.

Quote:

Originally Posted by Knot 4 Me (Post 4182358)

No crossover on my 496 factory Corsa setup, 400 hours and no reversion. Then again Merc's Gil-type manifolds/risers are different than the cast iron stuff on a Volvo 8.1L. The side exists have silicone-booted stainless flappers. There are also baffles in the staniless elbows that are between the tubing off the risers and the tubing from the tips.
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Dont doubt you at all...you may have something else in your favor...height over SWL or the vacuum will pull enough thru the Corsa and not bring water up from the Volvo Y. The crossover was added to prevent the vacuum that could occur on shutdown in a particular scenario...frequently enough in other apps where it was added across the board....

Quote:

Originally Posted by liquidlounge (Post 4182392)

The crossover also makes side exhaust sound MUCH better.

Yes, side exit does sound like crap compared to transom exit. Never heard one with a balance tube. Would be curious to hear the difference.

Quote:

Originally Posted by soldier4402 (Post 4182356)

how much you want for them

You have a PM.