Re: what mufflers?
 

I havn't heard of any of the mufflers holding up with big motors and no water. If anyone has any info to the contrary please post it. I have 6" totaly dry cmi and over 1100 hp to quiet down.

Hey Ratickle did you get my reply on the Flame Arrestors ?

Paul

Re: what mufflers?
 

stellings
We have them on 1300hp motors and they pass at under 90dbs

Re: what mufflers?
 

I used Corsa mufflers on two boats successfully, and never lost top speed. I replaced the Corsa's on my current boat because I wanted to try and get even quieter, and switched to Gibson bullets. The Gibson's may be very slightly less loud, but because I also upgraded the engine, I don't have a perfect before and after comparison for noise or top speed. This may not be the correct place to mention this, but I have the Corsa's for sale. They are thru-transom mounted for a 4" exhaust hose. They have 6 1/2" diameter bowls that Corsa says are good to 600 HP with no performance loss, and also have external salisbury flappers. I used them only one summer and they look like new. I'd be happy to get $300 for them.

Re: what mufflers?
 

Due to the configuration of my exhaust set up and water exit, I definitely need to use clamp-ons. This is what seems to be limiting my options. thanks anyway though.

Nobody running or have any experience with Shotgun type set ups?

Re: what mufflers?
 

I have the Livorsi E-Series on my 525's. Like them alot. Quiet at idle and then growl while running! Good luck.

Re: what mufflers?
 

The Livorsi's are a good unit however they are not recommended for my set-up due to where the water mixes in.

The Gibson downturns would definitely work however I think they will be too quiet for my taste. Still want to hear a little growl at idle :cool: :D

Re: what mufflers?
 

Livorsi no longer sells the E-Series. They now sell the CMI Sound Elimination Mufflers. ;)

Re: what mufflers?
 

I think Lofty on here has access to GGB. I run them on 600 CU IN 750 HP NA and they work great. could not tell any difference from before and after except a little rich in the mid range.

Re: what mufflers?
 

GGB is no longer producing marine products. A very similar product will be on the market early in 07'. It's a exploits the same technology as the GGB's with some real improvements to construction. We are promised the first production run in January.

Re: what mufflers?
 

Lofty,

Can you provide more info on these upcoming units? Pricing? Available in clamp-on? Will they work for my described set-up? thanks in advance.

Regards, Mark