In what way?
- Mileage
- Power output etc
...
Sure there are a few guys hitting over the 100k mark now and seem to be running problem free. As long as you look after it and keep it maintained I dont see it kicking the bucket too soon.
On the tuning side there are guys running 330+ with a few bolt on mods (HPFP, Exhaust, Induction kit, Revo S2+). But Id rather concentrate on the handling and getting the power down. Lots of things can help with that. Engine mounts, coilovers, WALK, Diff...its slippery as they say.
If your wanting to go BT (400/500hp) then Jonnyc is the man to talk to, but you best have deep pockets.