Hi all, I have a 2001 2.5tdi t4 with ajt engine. I’m having a recon engine fitted and wanted to up the power so there’s more torque for towing. I believe my van is 102bhp and iv been told I only have to buy bigger injector tips to be fitted then have the van tuned. Also I had a new turbo fitted to the old engine last year, do I have to upgrade this as well, I only want to go up to about 150bhp! Any info would be great thanks. ?