Thanks for taking the time to give your opinion Pete, much appreciated! What are the benefits of the Toms filter and intake pipe?
I was searching again last night, would this combination work.....
https://www.merakiautoworks.com/collections/isf-products/products/rr-racing-intake-for-lexus-is-f or http://www.ebay.com/itm/HPS-Blue-4-Ply-Silicone-Post-MAF-Air-Intake-Hose-Kit-For-Lexus-08-13-ISF-IS-F-V8-/311605343587?fits=Make%3ALexus
Plus....
http://www.garagewhifbitz.co.uk/lexus/is-f/toms-super-ram-air-filter-lexus-is-f.html
I have installed an induction kit on my previous IS250 so as long as the HPS/RR pipe connects to the stock airbox without additional parts required, I should be OK.