I would get the Radflos in the 2.5" OEM Replacement, and the 2" Radflo Rear remotes.
If you plan to go higher later, check with Greg that the Radflo OEM's will take a custom spacer, or hat flip like the Icons do, (you need the PRG UCA's when you do either with the Icons, but the 2" Radflo's look like their's are already flipped in the pic on prgproducts site). Also, being an '08, since the coil buckets are higher, the hat flip might be too much even with his arms.Cool stuff, I wouldn't have guessed that, so I can upgrade to a new uca when time allows!
On a 2.5" the piston is larger, and the shaft probably is too. Usually a 7/8" shaft on a 2.5", and could be either that or the 5/8" on the 2".Alright good info. What would be the difference between the 2.5s and the 2.0? Are they stiffer?