i have 272/264 gsc and the car sound mean. the idle doesnt bother me. it has never stalled on me. quick question would i have to retune my SAFC2 over again?

 

HKS 280's are streetable if tuned properly with the proper tools

 

So True! You hit it right on the head.

 

Personally I ran hks 272i and e, if your intent on those cams I would do a staggered set 272 i, 280e. Will give you good power range. With my hks they had good spool and good midrange but on a stock turbo just not enough top end. So by putting a 280 e cam, you allow yourself more power in the top end. But as far as idle goes mine moped somewhat. But with these staggered they'll lope some more. Still completely streetable. Now if your friends gonna swap them, make sure u got an owner's manual or PDF manual with torque specs and take your time. Fastest I dida cam swap with lifter cleaning with one persons help took 4 hours cam marks didn't wanna line up. So if you believe yup can do it good luck. Just don't beat on it hard till u get tuned. The cams might change the way it pulls at wot, boost cut fuel cut etc.