Which mufflers to buy
 

I'm looking to put some mufflers on just not sure which ones to buy. GGB Extreme or Livorsi E Series Which one is better.

Re: Which mufflers to buy
 

i have some for sale with air pump..
also have gill exhaust for sale as well.
225-802-1730

Re: Which mufflers to buy
 

You should look into the HPIs.They are very quiet with minimal power loss.

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I would like to know what the loudest silencers are that you can just barely legally get away with.

Who makes them?

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Happy with my HPIs.

Re: Which mufflers to buy
 

GGB's work without ANY HP loss. For 500hp and smaller you can run the new Cyclone Series for under $300 a pair!

The Extreme Series are what I run on my boat and sell the most of. No complaints yet :cool:

Fionn
[email protected]
O'Neill Offshore Marine
925.952.9623
510.541.8124

Re: Which mufflers to buy
 

i run GGB Extreme series on 750 HP EFI NA engines. I am completely satisfied they were the right way to go. You can carry on a conversation in a normal tone of voice up to about 55MPH when wind noise takes over. Joe Murray

Re: Which mufflers to buy
 

Extremes!

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Which muffler is best for no hp loss in the 875-925, thanks Jeff

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NOT the Gibsons...they slowed me down 5-6 mph......putting Zoomers on the boat next week. :D

Re: Which mufflers to buy
 

Jassman, We just put a couple sets of GGB Extremes on my friends rig. He's got a pair of blown 900hp mills in a Warlock Cat. He has dry Stellings and the thing is deafening loud! We didn't put a dB meter on it but it's made it much much quieter. He says he can't notice any performance loss and is happy with the results.

Fionn

Re: Which mufflers to buy
 

Lofty,
Can you send the data we talked about a week or two back (test results).

Thanks,
Rick

Re: Which mufflers to buy
 

I just got GGB's. I'll let the group know how they turn out. I was at 97db at idle before, i'll measure and see how they do.

BTW, O Neil Offshore has amazing customer service. I would highly recommend them... :drink:

Re: Which mufflers to buy
 

Thanks, Madmax! We aim to please :D

rv, I haven't forgotten you I've just been on the run since I got back to town. I'll get it to you this week.

Fionn

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Thanks Lofty, I will let TMP know. Jeff

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Neither be loud and nasty and just pay the $100 noise ticket.

:D :D :D :D

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They ding you a hundy in Cuba?!?!?!

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And they flushed my Koran down the head... Damn Americans white devils. :evilb: :evilb: :evilb: :evilb:

Re: Which mufflers to buy
 

Semper Fi, I installed Gibsons on my modified 496 HO and they are quieter than my former Corsa's. I don't have a frame of reference before and after because I modified the engine. What engine(s) are you running that were affected so much by the mufflers?

Re: Which mufflers to buy
 

I am also looking for mufflers,was looking at ggb's but the extremes say they are for dry exhaust,my new exhaust is 5" but adds water near tail,its supposed to be wet (don't have the tails YET so i haven't actually seen),what will work best with 950 hp blower motor,Smitty

Re: Which mufflers to buy
 

Fred,can you pm me a price on the ggb's,will the extremes work on wet tips,Smitty

Re: Which mufflers to buy
 

Smitty,
The Extremes are designed for wet but can be used on dry. They work great on wet systems and will have no problem with the power you're running. We've put them on bigger engines than yours and haven't seen any power loss like some of the other mufflers. PM me or Email me for OSO member pricing.

Fionn
O'Neill Offshore Marine
[email protected]
925.952.9623
510.541.8124

Re: Which mufflers to buy
 

I have HP500 (carb motors)that are fresh.. My boat ran 85mph on GPS before the Gibsons.....now it runs 80mph. They do quiet the boat alot. I am switching to the Zoomers.

Re: Which mufflers to buy
 

Semper Fi,
Are the Gibson's that you lost the power with the Transom mounted version or the clamp on version?
Was it the Bullet style or the Power Tip version.

I heard from Gibson that someone mounted a clamp on version to far on to the tip and that blocked off some opening inside the muffler that reduced his performance. When it was mounted they way they wanted it was ok.

Re: Which mufflers to buy
 

I have the through transom exhausts. I have the superflow bullet ones....

http://www.gibsonperformance.com/products.asp?pid=21523

Re: Which mufflers to buy
 

I installed GGB's and they have been great, no power loss and a definite reduction in sound.

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I just ordered GGB's through Trick earlier this week. They seemed to be the best for my application.

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Don't buy any mufflers.save the money :o)

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Thanks for the clarification. Wow, that's a huge hit in speed/horsepower loss. I too have the thru transom bullets. I'm anxious to see what top end I get this weekend. The reason for my purchase was the great results they had in the Hot Boat test report with an HP525. Both quiet operation and minimal effect on RPM. I may have to put my Corsa's back on.

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I am running CMI dry pipes on an NA 540, 680 h.p. I just ordered GGB's Extreme from Trick Marine. I should have them on for the weekend.

Re: Which mufflers to buy
 

Have been testing mufflers at loto now for weeks. working with ggb, hpi, cmi, gibson. so far the ggb's on wet and dry applications are working the best. I'm testing on 850 and 1150hp blower motors, have dropped the 1150's from 123db open to 99db with the new 6" insert. they are revamping it now still a little too small in diameter and needs 6" more. I think we will be close to 90 db using j-2005 test. Hpi is aqlso working on a muffler that I think will be close as well. they are both inserts. so far no power loss, but 33db decrease is unbelievable, these guys should be commended. cmi has there new sound reduction system out with high tech technology and spring loaded tips, also I think the turn downs are awesome in some applications. we are working to integrate them into the styling of the Nortech cats. Bacardi silver has all there boats rigged with them. they are so quiet its sickning, plus Dave Scott installed them to where they actually enhance the look of the boat, good job Dave. will follow up with more results. All of these companies are awesome and we will soon be able to tame the highest horsepower motors with little or no power loss. this technology is not cheap but at least you can run legal.

Re: Which mufflers to buy
 

My GGB's just arrived, and I wasn't expecting them until tomorrow. I placed the order with Trick late Monday afternoon. I hope to do a before and after video to show the difference. Mybe Fred can put them on the Trick site.

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Hey Wiggler4490...I sent you a PM a few weeks ago with some contact info for the guys @ Zoomers. Did you get it? :eek:

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I bought the GGB's they work well, my neighbor says the boat sounds the best it ever has.

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I'm glad to hear that!

I just got a shipment of the new GGB Cyclone Series in. They look good and are quite a bit cheaper than the Extremes. They are good for up to 500hp with no hp loss. They retail for $300 per set for clamp on or transom mounts. I just put a set on a customers DCB29 with 550hp mils with absolutely no performance loss.

Fionn

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I got my GGB Extremes today. I will have them on this weekend. Thanks Fred from TrickMarine

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The GGB's were packaged great and look great.

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I got my GGB extremes installed, and i'll be taking it out this weekend with a DB meter. I'll see how they work. I do know this, on my boat, the transom mount were an absolute $itch to install. I woulda went clamp on's if I could do it all over again. No fault of the mufflers, just a tight engine compartment. They look sweet on tho.. :drink:

Re: Which mufflers to buy
 

Glad you like them, I knew you would! Pics????

The transom mounts do look good, they're my favorite set up. I know some installations are a bit tight but the payoff is great.

Fionn

Re: Which mufflers to buy
 

I hope to post before and after videos of mine next week. I have a single 540 with dry CMI big tubes. Maybe that will help determine their effectiveness. I don't have a db meter.