Buying after market exhaust system - Star Motorcycle Forums: Star Raider, V-Max, V-Star, Road-Star Forum
 
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post #1 of 2 (permalink) Old 06-04-2010, 04:23 PM Thread Starter
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Buying after market exhaust system

How much good does this really do? Does it really give you more
power and improve MPG, or just sound loader

Do you have to retune the bike as well? I would think so, unless
a micro prossesor, does that automatically.

I'm thinking of a new 09 V-Star 650.
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post #2 of 2 (permalink) Old 06-04-2010, 08:11 PM
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Pipes

Dog father,

I think you will find if all you do is an aftermarket exhaust you will mostly just gain noise. Some would say a cool pleasing sound but little change in performance. The V Star 650 has a carburetor so to change fuel mix you would need to rejet. But for many exhaust's if that is all you do many do not change anything more.

To gain a noticeable (Maybe 10%) Horsepower change you would need to change Airflow in, rejet, and exhaust.

If you should buy a fuel injected bike like for example a 950 V Star then an electronic fuel controler could be changed. The story is the same on the exhaust and air box.

Dave
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