i picked up a 2007 Polaris trail boss 330 what are the best mods to do and what aftermarket exhaust to get for it also thanks guys

 

My two cents worth is to keep it stock. I know there are probably some some aftermarket exhausts but that in itself won't make that much difference other than making it louder. The best thing you can do other than trying to modify the engine is to install a clutch kit. Here's one.https://epiperformance.com/sport-utility-16/ If that isn't good enough then you can go to this place. They have it all.Aaen Performance - Polaris ATV Clutch Kits

 

A clutch kit will make it feel like it gained power. You won't gain any top end speed but it will be quicker.

 

how to get the top end with the clutch kit and what's a good oil to use and spark plug and how to take off the front rack completely off but still have lights thanx guys

 

Rotella T6 5w40 is a good cheap oil to use.Use the stock Ngk Bkr6es plug. Don't under stand why the rack removal just for relocating lights as the rack also offers mounting for the oil cooler screen along with some protection for the oil cooler itself.

 

do u no what the gap is for the stock Ngk Bkr6es plug and I was just wondering about the rack ill leave it in place and on the clutch kit what one do u recommend to get and on that page it says they are for from 03 to 05 will it still work with my 07 thanks

 

Clutches didn't change from the 2003-2013 models. Still used the same 3211077 belts also.Just get the cheaper kit as the difference in kits is the 130 buck belt that's added on one kit.Oem belts are better you can get for 70 bucks or so if needed. Plug gap is.036 per the manual.

 

ok great how about the front sprocket to a bigger one will that help also or does the back one need to be changed also and do u no what oem belt it is thanks for all the info

 

I'd keep the 11 tooth front and 40 rear as it's a good ratio,plus adding a clutch kit will help if that's what you want. 3211077 is the oem part number for the Polaris belt. Plenty of cheaper or even higher priced belts out there but this is the best.85 12 Polaris Trail Boss 250 325 330 Clutch Drive Transmission Belt 3211077 | eBay

 

ok great ill do it all what u suggested and how about a clamp on k&n for it or uni