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Discussion Starter #1
What is the best full exhaust on the 850 for hp gains?
 

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Discussion Starter #2
The only ones I am seeing are HMF and Big Gun. Are there any others? Anyone seen dyno results? Thanks
 

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I'm looking for a full exhaust as well. HMF and big gun are the only full exhaust there are a few others that make slip on exhaust's. I'm leaning towards the HMF I think it's a better exhaust and not as loud as a big gun! I've never heard the HMF in person but I have heard the big gun and its loud as hell sounds good though just a little to loud for me!
 

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If anyone wants to buy a big gun full system ill give them a good deal on mine I have a brand new muffler with a used head pipe
 

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What kind of deal ?
 
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