Hi buddy, yeah i have asked them three times now to remove the blocks from the suspension, good advice about the exaust i will see if there's any teething problems first, i have ordered new v1 wheels for it, i have got it in writing from the manager that the wheels wont effect the Warranty as they are oem wheels, and as long as the cat back is not going to cause a problem with the engine then its not a issue, i have also told them that i dont want nissan to do the services, they are fine with that as long as the garage uses genuine nissan parts, so it be going to Horsham developments for any servicing