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fysis
09-03-2010, 12:04 PM
Question. Whatīs the best pair of mufflers i could use on my 22 classic over 600hp without loosing to many hp. Want it as quiet as possible. Concern of the neighbours in the bay. Using lightning headers today.Anyone experienced with mufflers. Cyclone?? running 4" straight now.:sweden:

fysis
09-03-2010, 12:06 PM
Question. Whatīs the best pair of mufflers i could use on my 22 classic over 600hp without loosing to many hp. Want it as quiet as possible. Concern of the neighbours in the bay. Using lightning headers today.Anyone experienced with mufflers. Cyclone?? running 4" straight now.:sweden: No swithes or silent choice but constant silenced.

PlumCrazy
09-03-2010, 01:06 PM
AquaPower(formerly HPI) and GGB both make excellent mufflers with limited loss. I saw zero loss running HPI 9049-PR mufflers on twin 496HO's. I believe these are rated to 700HP. If you're only worried about no-wake zones, go with a set of turn-downs. Gibson makes nice ones or GGB will custom make to your specs.

http://www.aquapowerltd.com/
http://ggb.ca/index.php

8318
09-03-2010, 01:36 PM
I have Gibson one on my 540 in the Sutphen and I love them!!

BigGrizzly
09-03-2010, 03:08 PM
CMI work very welll

axelkloehn
09-04-2010, 03:11 AM
this might help:

Carl C
09-04-2010, 07:06 AM
That last pic looks familiar! The Gibson Bullets work very well but I like to let the engine roar so are are usually left home :) . Don't use the slip in ones in the article. They are too restrictive for a big block.

fysis
09-05-2010, 12:12 PM
That last pic looks familiar! The Gibson Bullets work very well but I like to let the engine roar so are are usually left home :) . Don't use the slip in ones in the article. They are too restrictive for a big block.
Thankīs very much for all the info about the mufflers . I will use the ones with the best noise reduction even if i have to make the holes in the transom 4,5 ":sweden:

Ed Donnelly
09-05-2010, 04:00 PM
The turn downs are really cool and still quieter when running as the exhaust points down..plus they sound great burping through the water at idle...Ed

fysis
09-18-2010, 12:10 PM
this might help:
Anyone tried the IMCO mega muffler thatīs seems to bee the best in this test??:sweden:

mrfixxall
09-18-2010, 02:36 PM
Anyone tried the IMCO mega muffler thatīs seems to bee the best in this test??:sweden:

the sound elinimators work really good

fysis
09-22-2010, 11:44 AM
the sound elinimators work really good
Okej Mr Fix. Where can i find thoose. Thankīs for the help:sweden:

mrfixxall
09-22-2010, 03:39 PM
Okej Mr Fix. Where can i find thoose. Thankīs for the help:sweden:


sorry i guess i should have mentioned who made them :) their made by cmi and they are quiet whyle idleing but when you hit the throttle thet get louder,,they atr spring loaded and you can adjust them for a quieter cruise speed.

here's a video
open exhaust
http://www.youtube.com/watch?v=Xy-7UolI1No&feature=related
with them on
http://www.youtube.com/watch?v=ZX0sVVShGc4

axelkloehn
09-23-2010, 02:15 AM
sorry i guess i should have mentioned who made them :) their made by cmi and they are quiet whyle idleing but when you hit the throttle thet get louder,,they atr spring loaded and you can adjust them for a quieter cruise speed.

here's a video
open exhaust
http://www.youtube.com/watch?v=Xy-7UolI1No&feature=relatedwith them on
http://www.youtube.com/watch?v=ZX0sVVShGc4

great! How much is CMI asking for them?

mrfixxall
09-23-2010, 11:34 AM
their pricy i think around 1500.00,you can watch ebay,i have seen them sell for 500 per pair..

joseph m. hahnl
10-16-2010, 03:09 PM
Question. Whatīs the best pair of mufflers i could use on my 22 classic over 600hp without loosing to many hp. Want it as quiet as possible. Concern of the neighbours in the bay. Using lightning headers today.Anyone experienced with mufflers. Cyclone?? running 4" straight now.:sweden:

I am very satisfied with the Dapars. Although they may no longer be available, it appears they are being made under another name.
they do not specify horse power , they do however state minimum horse power loss.

Here's a link
http://marineengineparts.com/shopsite_sc/store/html/page429.html
These are the Gibson I have. They are not ugly like Carl's :spit:
I think they are rated to at least 600HP
http://www.danamarineproducts.com/ProductDetails.cfm?group_id=10&catid=244&productid=1472&CFID=1065988&CFTOKEN=4cf1eb9-bfedb5c6-104e-4f80-8473-bfc75e70d616
here is a link to my Minx with the Dapars and the Gibson Muffler tip combination.
http://www.youtube.com/watch?v=ip6viyq7pso