4" insert mufflers
 

I don't remember for sure but I think these are it:

http://shopping.rexmar.com/Merchant2...encers-headers

asking 200 shipped.

Ttt

sdrockslangers - I sent you a reply, but it says your inbox is full.

Send me an email or a phone number to send the photos to.

Thanks!

pm me with email address or phone number and I will send you photos.

Thanks.

Ttt

170 Shipped

160 Shipped.

How good of a job do these do at quieting down a boat with some headers or EMI manifolds with open exhaust currently?? Specifically at cruising speeds of say 3000-4000RPM...
Also did you see any RPM or top speed loss?

unfortunately it's a hard question to answer becuase I never took any measurements to have an emperical comparison. All I can tell you is that I noticed a difference. At WOT there wasn't much of a difference, but as you go down in speed and load the sound suppression increases. 3500 RPM they were still pretty effective. I did not notice any RPM or speed loss. It might have lost 1 mph or 50-100 rpm though. But, for me that wasn't noticable.

Thanks.