Like any forum lurker might do ,i am doing the easy stuff first ,couldn't get into too much trouble working on my rack ,right ? plus i am injured right now so something easy was just my speed! to give you an idea of what i did was using all m6 stainless hardware and 1 1/2 x 1/8 aluminum angle i fabled up some 6" brackets that used the stock mount tabs that were inside my factory roof system .the m6 x 1.0 pitch is what the factory system utilized so i found the correct length ones to work for me (aprox 1 1/4") the one in the pic is a little short ,fyi .also i used a piece of 3/4 x6" plastic that i had at home for a spacer to bring the rack up so it clears the arc of the roof top ,but i imagine a piece of square stock 3/4 aluminum or any composite material would work just fine as an alternative to plastic spacers. i then needed to offset the angle on top of my spacer 3/8" to make it wider, because the rola rack is a bit wider than the location of factory rails ,drilled a hole in both pieces and picked up the factory insert tabs in the rail system all and all made for a sturdy firm mount .for those of you who live in San Diego ,you need to check out "marshals hardware" in miramar area this place is the mega mart of hardware and makes projects like these a lot easier one stop shop with just about every nut and bolt/size &material you can imagine, best of all its serve yourself to as many or few that you want . I like the way it turned out with the lower profile and improved finish ,no more dull looking hi-hat rack ! next i will be lifting her a little more ,the 2.5 just isn't cutting it ! hope i'm not shooting myself in the foot as it drives and handles really nice right now .Im just trying to get some info out there for anyone looking to do the same roof rack modification and give back some to T4Rorg community,enjoy