Slip On / Bolt on Performance Gains

skotty

Registered
Apart from the sound, are there any performance gains on Bolt on exhausts? If so, how many horsepower? I know there would be a significant weight loss with aftermarket slip ons, but I'd like to know if there would be any horsepower increase.

I like the way dual exhausts look, and the only aftermarket dual full exhaust system I know of are the HMFs. Anyone know of any other dual full exhaust systems?

Thanks in advance for the newbie questions
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Never mind, just looked through some earlier posts (should have done that before posting this) and found that slip ons barely do anything for horsepower.
 
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