Total cock up on my part - I assumed (wrongly) the lowered sump was more of an option as opposed to a necessity. So two options open to me either the Raceline sump or the new ATR lowered sump from GBS. Both do the job, one is £200 cheaper than the other...lets do the maths...hmm ATR it is then!This is actually a nice bit of fabrication on the part of GBS/ATR and it comes with all the fittings - cork gasket, oil pick up, bolts etc - everything needed for converting stock sump to lowered sump.
Firstly, ensure the magnetic sump plug is inserted and fully tightened. Dry fit the new sump to the engine block and check hole alignment. Mine needed some slight adjustment in opening up the holes a little more to ensure all fully aligned.
I then smeared some Vaseline along the top of the cork gasket and mated the lowered sump to the engine. The sump was then secured with the x10 bolts and tightened - Be very careful not to over tighten the bolts and crush the cork gasket you only need to tighten plus qtr turn - use feel. (NB the bolts supplied all had threadlock pre-applied so you don't need to add any more when fitting)
Plenty of photos here - appreciate the ATR product is quite a new item and finding fitting guidance on the web is sparce to non-existent, for those fitting the sump I hope the above gives some useful pointers.