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Discussion Starter · #1 ·
OK so I bought this 660 that had the stock exhaust header pipes on it with a HMF slip on... it sound VERY nice and deep... but id like to get a new header pipe to help gain the HP i should be getting.... Now do i need to get a whole new exhaust system... or can I get a good after market head pipe that will do the job?? any suggestions would be great! Im planning on getting a new K&N filter setup and jetting it (it may already be jetted due to the Slip on i dunno but i may as well as redo it when i put a filter on)
 

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You should be able to buy a HMF header to upgrade your slip on to a full exhaust.
 

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The silencer body (muffler) has been powder coated blue.
 
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