Viper pipe on SX?????

Yous will be seeing a viper pipe on my sled next season. Any idea what a bender single pipe would do?
 

Here's where it's at. The Viper pipe fits (had to trim down one of the screen tabs), but the Viper can doesn't fit, it fits the belly pan, but the hood doesn't close all the way (1 1/2" open). So I bought an SLP viper can and used that, it fits nicely. The can is similar noise level as stock, just a different note. I ran it with 145 mains, 45 pilots screws @ 1 3/4 turns, and clips in the 3rd position. Everything looked good at 15°F but that night it dropped to -15 and I burned up the PTO piston 5 miles miles from home on a 200 mile ride. Sucks! But I put a new piston in and cleaned up the cylinder. I set the clips @ the 2.5 position & turned the fuel screws out to 1 7/8 turns with a 147 main in the PTO, the other pistons still looked pretty good as far as piston wash goes, so I kept them with the 145 mains. I rode it for 400 miles. I used the stock clutch settings, and I have way too much over-rev, but since then we've lost all the snow, I didn't do anything else. But because the over-rev (worse than normal for stock clutch settings, I would assume there's more HP there).

I hope your post is typed wrong and you didnt put the clips at 2.5 when they were at 3.0 and you burned a piston...... merely going to a 147 main jet from a 145 would not neccesitate the needle to be leaner, you spend 75% of the time you trail ride a sled on the needle circuit.
 
By 2.5, I meant that I raised the needle up, that would make it richer, right? OOP!! (I just went back and looked in the tech section, I meant that I put the clip in the 4th position & put a washer above & below the clip, so that would be 3.5 NOT 2.5 sorry for the mistake.) SO I guess I raised the needle to 3.5 just to clarify. Thanks for pointing that out.
 
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