I have apex with a boondocker gt2554 kit the chassis is done just about all custom & light weight drop & rolled vanamburg tunnel 174 2.5 track. Motor has Corillo rods & je pistons My question is it worth the cost to up grade to 28rs or 2871 turbo? i would also need fuel pump & regulator. was running at 15 lbs. at end of year thats about the end of efficiency of the small turbo seemed to be enough power at the time. just wondering if after rideing for a while i will be wanting more? p.s. most rideing is in Revelstoke snow can get deep thanks in advance sorry about spelling not my strong point.