I wish they used silicone for mine. Kinda indicates that they really had no build standard when putting boats together. Whatever the installer felt like using. 5200 is extremely permanent. However, even with the ***** of getting the muflers off, I still think the transom should be extremely well sealed and some silicones are really not up to the task. My Corsa mufflers had an extremely large outside diameter with studs going into the transom from the outside.

this is something I have been wanting to do also, are there any pics out there of the tips you guys are using? Has anyone gutted the tips you have now? I assume what I see up in the tips I have now are the mufflers, right? And just where is the turbulator plate at?

Yea, I would check into it a little closer. I think my mufflers were a larger diameter than some of the ones removed by other board members. I remember seeing a more compact muffler on 496 installs. I can't imagine any 4" tip flange coming close to the diameter of the corsas I removed. You would need over an 1" flashing to get the bolt holes close. 380 your welcome to my shop to look at what I have done.

look at post number 26


item number 19

OK here is the low down on my install. The mufflers I took off had a total outside diameter of 5 1/2" see picture 1



and the new tips from Eddie Marine were 4"....BUT they have a 3/4" flange all the way around making the overall 6" see picture 2




and as for what is inside see the rest of the pics on the next post.


I hope this helps.

ok pictures of the mufflers

I hope this helps

Your excellent photo journal work has confirmed my suspicion that the mufflers on my install were much larger. I can not measure them now as I have since sold them but the outside diameter was at least 7" or more. After looking on the corsa website the mufflers used for 500HP and above are quite a bit larger. I probably should have just guted my mufflers rather than do transom surgery but I still would have had to pull them.

thanks for the info littlejake

Does anyone have any knowledge of the Corsa ASR Tunable exhaust tips?... just wondering if their tips are like the Supertrapp motorcycle exhaust system that you adjust the sound by the number of discs inside the muffler...