the problem is definitely warped manifolds lol unkrock: i was trying to point out what causes the warping. heat is definitely a factor causing the warping, and all cars warp over time. the sd33t seems to warp more often than the other engines though, even sd33 i havent really heard of. thats why i thought its probably the turbo. i havent seen the factory turbo setup so dont know for sure, ill tweak that section anyway.The problem is heat and warped manifolds.
not from 80. I've had it from 30 all the way through to 90 just depends on a factor of thingsSteering death wobble
I would also put a comment to test drive the at 80 Km or higher to check for death wobbles ( king bearings, wheel bearings etc)