If you want camshafts you need either t5 cams or b202. If you are doing either you will want a td04-15t minimal to see the best gains. There are t5 cams from the na motors and the boosted motors. The na motors have a longer duration. The b202 has the longest duration for any Saab motor that will work in the t7 head. I have sets of both and a turbo if you need them.You have my attention, should I change out the stock cams? If so to what? Do you have? I'm new to working on turbocharged power trains but I've had plenty of time busting knuckles under hoods. Also this is my first Saab and I fell in love with the OG style and innovative thinking in their designs so I want to see where I can eek out some ponies. (imagine if you dug around every couch cushion you sat on the past 5 years and what you've accumulated is the kind of budget I've got for this sorta thing right now, so please keep that in mind) and thank you for educating me and assisting me in making my Saab even more enjoyable to drive.