i went halfords earlier and got o.e plugs so i can only run 270hp. luckily i have switchable maps. cant run performance map on these plugs but so far car is fine no probs. will send it back to tuner to put betta plugs in an another blast on the rollers.

hopefully no damage to the cylinder/piston or valve. if it does have damage that means i will have to kill the tuner!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

watch this space. cheers