different year parts

[speed]

i have a 2.5 1997 260 on a 89 bridgeport mid and lower unit. do i need to do any mods for exhaust or do they match up.

[us1]

Yes, you need to match the two exhaust ports in the midsection to the two ports on the motor.

[speed]

thanks for the reply. i have ran it a few hours with just drop on. how do i go about doing this

[us1]

Pull the power head and start grinding.

[speed]

i grind the exhaust ports ? will i gain any rpms or power ?

[us1]

If you gring Nicasil you will have a box of trash.