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I was wondering if the billet exhaust tip help in performance ? do you have to rejet when adding this tip ? and does it sound good or too loud ?
 

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It is suppose to add a horsepower or two. No rejetting necessary. It makes it a little louder, but too bad.
 

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A few companies have posted that it helps...I find it hard to believe also. Maybe because its less restrictive it adds some grunt.
 

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The header is what gave you the horsepower. You can grind the welds on the stock and get a little. The tip is nice but very minor improvement. Ive done all the cheap stuff and all together I am up from a 145 main to a 150 main. I could probably run down at 147.5 also. The 145 now is very white so I definately leaned the motor with the intakes. Micture is at 2.25 and I added a 50 pilot.
 

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its mainly looks, but does help the flow better
 

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just the tip wont help you need to do something with the intake to.i got the tip,kn filter , raise power tube and then rejetted the carb.i did some timed runs on flat ground with the gps befor and after and it really does make a diferance. for a 100 bucks you cant beat it.
 

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Basically, it sounds that you need the right combination of mods for the power. The tip is not the key component, but it helps in conjuction with other parts such as a header.
 

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We did it when we went to a open air filter and bigger jets, no mucj louder and it looks cool. But with stock you should be fine no need to rejet. I put mine back to stock filter and jets and I have no problems.
 
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