Just wanted to reaffirm my tune and mods for the OP's observance.
I run the LMS 4X 3bar as well, mother of god its great stuff. Talk about bang for your buck. I would also fully support the SP534's gapped to 30 and at least a 170 degree tstat, and you're good to go!
I'm also lucky enough to have PPE downpipes with 3rd cat delete to open the exhaust, and yes there is a difference. Best part, I have achieved my best MPG of all time with this setup, 26 highway. Of course with a lead foot that can go down, but still, how cool is that?
Pull the trigger now, happy tuning.