Sorry joe I missed your question completely pal, I use mine daily on pretty crappy roads to be fair and I have no probs with them
Update!
Fitted my Airtec twin spec cooler yesterday, all went on pretty well and looks stealthy behind the grill in satin black!
First reactions without the map changed is that the car sounds different? Deeper almost, weird I know. Sounds good tho! Also it seems to pull abit harder but that could be a placebo effect
I would put pics up but photo bucket is being a tard!!
Also the car is booked in at Statllers sheffield for a revo stage 2 update and linear throttle putting on. While I'm there they are gonna fit my new cam follower and update my revo sps switch for me