DTM
09-07-2003, 09:31 PM
I have a '87 Z-21 SB that the port exhaust manifold has a small drip coming from the bottom. It look like I have a cracked manifold.
I am thinking about install Stainless Marine manifolds but was wondering what performance improvements I might see as teh rest of the engine is stock.
Also thinking on install "silent-choice" as it is thru-hull exhaust and is a "little" loud for the marina.
Any input will be helpful.
I am thinking about install Stainless Marine manifolds but was wondering what performance improvements I might see as teh rest of the engine is stock.
Also thinking on install "silent-choice" as it is thru-hull exhaust and is a "little" loud for the marina.
Any input will be helpful.