WHat do you think of them ? Will they work for high horse power engines ?

Ttt

I have them on a 525EFI. Very pleased with them. Bought a decibel meter and have yet to get a reading. They are the transom mount extreme. Really sound and look great!
Greg

I am curious as well.

Graham Barkey with GGB has been great with answering my questions, but I would like to hear from a few people that have them.

I'm just about to sign on the dotted line. So far the support has been pretty good.

I just came into the office to find my fax from Graham @ GGB saying that I am a dealer now !
I am ordering a set today for someone .I'll let you know how it goes . After looking at the web sight and talking to Graham ,the owner, they look like a great deal and work well . Different models availible from stock engines up to 1200+ hp !
Here is there site : http://www.ggb.ca/home.shtml

Hmmmm....do I smell a discount?

sniff, sniff !