Currently owning 1.9 - 8V TDI, PD, Sport, AVF engine, and I am thinking what I can improve in terms of performance before it gets way too expensive... Anybody had been going same way I am thinking to go for it? And what kind of repairs, or upgrades u can do it, to be on the safe side, and before u blow it up your old PD engine? I believe 1.9 Tdi Sport model have 130bhp, and 310Nm with a AVF engine, maybe I am wrong? Now that is a lot off Torque at low revs... I been searching info about what difference between normal PD, and PD Sport. I don't know or is it true, but Sport model have got better clutch, much stronger piston rods, and a better ECU MAP from Audi, not sure about bigger injectors, and better turbo...?!? I still can see a lot off un burnt diesel smoke by pass my exhaust, if I need a quick overtake or just a faster speed. I believe this is because I need to remove-delete EGR. And improve exhaust, by De-cat, and remove middle silent box, and back end box, and just run a straight thru pipe all the way? And when exhaust done go for a Stage 1 remap? Now my question will be, is it all that worth a hassle, and money? Anybody who done it am self? What I will get from Stage 1 remap, due to Sport model have better map already from EOM Audi ECU? Any info would be a massive Thank you!