Installed thunders on my 502 with silent choice and as CC247 mentioned, had to add more tune on the bottom to install. Lighter weight is OK, and had to also get new brackets to re-install the alternator and power steering pump.

Now with my rebuild by Eddie, all the silent choice stuff will not be used, going straight thru hull

I know its an old post, but I am very interested in the part numbers and some photos of this setup. 1. EMI Kit 2. Steering and Alt brackets. I just purchased an '05 32 MCOB, going out for maiden voyage this weekend.

Any updates?