Need help!!!!

if you still wanna ride tight trails id go with the 2" because it will keep it shorter for quick turns . butwith a 240 kit i think a 4" would be a good compliment to the added power. just my 2 cents
 
i run +6 on my wheeler and all i do is pit and trail ride and the +6 is awsome it might be an overkill but i can slide the rear out just as easy as i did with the stock swing arm.