arh headers

Have a 19 PP2 with Steeda H-Pipe and Active Exhaust. Found a great deal on brand new unopened set of ARH 1-7/8th Headers. Problem is they are the 3” direct connection to Corsa. ARH Corsa Connect System What parts do I need to mate the 3” to 2.5” for now? Would something along the lines like...

EVERYTHING IS BRAND NEW AND NEVER BEEN INSTALLED. -BRAND NEW American Racing 1 7/8 Catless long tube headers with the direct connection for a Corsa Exhaust. -BRAND NEW JLT cold air intake -BRAND NEW set of BMR lowering springs altogether, everything was about $2300. take everything for...

Can't seem to find the a definite answer on this, but other than Kooks headers are there any other headers that the BMR Front Subframe Chassis Brace doesn't work with? I'm looking at going with ARH long tube headers soon and don't wanna waste the money on the brace if they aren't compatible. Any...