hi ive seen alot of post on here and followed alot as i recently bought a d22 06 model since then i have made my own intercooler, chipped it, egr, boost guage, done the dump pipe and a full exhaust and went to a diesel shop today to find out about doing a bigger garrett turbo and boost controller and he seems to think that you cant do a boost controller on the d22 and i was wondering if anyone eles out there has done it and how? thanks for your help