mufflers & tips -- latest opinions??
 

i have a 525 efi with hurricane lite headers and external livorsi north star mufflers (discontinued). one of my mufflers crapped out so it looks like i'll need to replace both sides. i'm not sure if i want to put mufflers back on or go with straight tips. i bought the boat this way but i cant help but think that the mufflers do rob a bit of power. and i have no noise police in my area.

i'm just looking for opinions on both. must be transom mount

here is what i have:

http://i209.photobucket.com/albums/b.../zttransom.jpg

Nice ride! No noise police? Straight tips.

thanks! pros/cons on brands?

if i go with tips i'll need a good internal flapper and straight cut so i can also have external flappers.

No noise control issues then use straight tips.
With a boat like yours with an intergrated swim step transom ALWAYS use good weighted rubber flappers !

Best Regards,
Ray @ Raylar

Mine are EMI they have a metal flapper inside, straight cut with rubber flapper clamped on the outside also.Randy

I fully understand the importance of a good internal and external flappers esp with the built in swim platform. I just don't know which brands are hold true to their claims and most of the web sites are not very descriptive.

I'm still not ruling out mufflers as long as they are not full time. My north stars had a nice rumble at idle and opened up after a certain rpm which sounded great but definitely didn't bark like open tips. CMI offers a muffler like this. Anyone have experience with these?

http://teaguecustommarine.com/index....lers-4-x6.html

My boat has these.
http://www.mercuryracing.com/accesso...xhausttips.php

They are nice because you can change the internal flapper with just one bolt from the outside.

Plus, you can add exteranls if you want. Actually Merc recommends both. I took my internals out because the noise bugged me. Now I just run external flaps.

Thanks Dave. What didn't you like about the internal flapper noise? Just didnt like the sound?

I am considering having Teague make me a set of tips with these internal flappers and external

http://teaguecustommarine.com/index....-assembly.html

At certain RPMs they seemed to make a rattling sound. I kept thinking I had a valve issue or something. Those Teague's look cool too. As long as you can replace it from the outside of the boat. They all seem to go bad eventually.

What broke on your North Stars?

Yes the Teague internal system is serviced from the outside and rebuild kits are cheap. I would think the flapper would be more effective if it were weighted. I have seen some ss internal flappers with rubber on the edges to keep them quiet but I can't recall who makes them

Not too many opinions on this.

Posted in the wrong area? Or not too many boats with tips or mufflers?:D

just because i like to follow up on my threads.......after talking with Bob Teague (what a great guy) i decided to have them make me a set of straight tips with their internal flappers. the tips are 4.5" OD x 6" long and reduce down to 4" thru the hull to match my CMI tails and will have 3 studs welded to the trim ring. should be a direct fit so i won't have to molest my transom. Adrian helped me with the details to make sure everything fits perfectly. A great group of guys to deal with over at Teague! so as long as the fabricator pulls through my boat will be barkin soon! the original owner said it was 107 decibels before he installed the mufflers which brought it down to 85.

Corsa gives a lifetime warranty on the tips & internal flappers as long as they didn't dmg'd from overheating & they do honor the warranty. I had eddie marine tips & all 4 were coming apart with less the 300 hrs on the boat. Talked to Jeff at Corsa & he gave me a great deal. $200 for 4 tips with internal flappers, 4" angle cut. The flappers are much better quality then eddie's