Naut25

Have you changed the high peak value (boost cut)? The EBC has a safe function where you can set it from spiking above the value set. Eg. I have mine set to 16psi and boost cut at 18psi to prevent it spiking above that value. Does that make sense?

Hey dude, great buy! Isn't it illegal to sell a car that is not road worthy, ie being on defect!

Yes they are.

Just my 2 cents. Though I'm not a Skyline owner (used to own 33 GTR Vspec II) now a Supra man. I'm currently running the Federal 595 RS-R and all I can say so far it's a great tyre. A lot of grip and the tread patterns seem to clear the water on the road. Prior to this I had a set of Michelin tyres and they would wheel spin after 5k but now with the new tyres, no more wheel spin. Reason I purchased this as I got it at almost trade price. 2 x 235/40/R18 at $360 each and 2 x 265/35/R18 at $410 each.

If the nut is similar to the Volk GT-C's, you can buy the hex extension from any tool shop.