I want it to be more powerful and loud. I also want it not to cost over $400
USE HEADERS WITH 2 1/2 inch PIPE WITH CROSS PIPE FLOW MASTER MUFFLERS RUN OUT PASSED THE REAR WHEELS DUMP IT TO THE GROUND
If it leaksuhhhh it will take on water in a wet slip. Pull the boat out of the slip and dry dock it. fill the inside with some water and inspect the outside for the leak. Once you identify where the leak is, patch it. Do you cover the boat? Even a boat with a cover will accumulate water over a period of time.
Pull the boat out of the water. While it is on the trailer put water into the bilge (make sure your drain plug is in). Then watch to see where the water is leaking out. It is normal for some water to get into the bilge of your boat being kept in a wet slip. For this reason you should put an automatic bilge pump in.
i have to be honest the magnaflow mufflers sound the best on chevys but the 305 the flow masters sound better
Be very careful with pipe size or you will hurt power not help it. The bigger pipes will make lots of noise but they will slow the exhaust gas speed in the pipe way down so the exhaust system will do a very poor job of cylinder scavenging and hence your performance will suffer especially at low RPM. That will hurt mileage. Call Flowmaster directly and they will size the pipe and muffler for you. Incidently, a single 2 1/2 inch flowmaster by itself will support much more HP than your stock 305 puts out, so keep that in mind when others tell you to run dual 2 1/2 inch mufflers/pipes. In terms of mileage and street performance, the single 2 1/2 on a stock 305 will chew up the duals and spit them out. Try it on a Chassis Dyno and see for yourself. You can run a dual outlet Flowmaster so you can have the Dual exhaust look. I think Flowmaster has a muffler like that.
