Any issues with using the kenny brown double diamond weld in subframes with a spohn tq arm in 4th gens? The car isnt a convertible. I havent heard of any issues, but double checking

 

That's what I'm running and it's a nice set-up. You are talking about the adjustable TA (shorter) that has the crossbrace, right? The brace bolts right into the DDs and helps make the chassis even stiffer. I lucked out and my longtube Pacesetter catless Y-pipe barely cleared the crossbrace. With your exhaust your probably going to have to run the one that has the extra clearance for the y-pipe, I-pipe. Only a problem if the car is lowered to much. Don't forget to one with at least the front drive shaft safety loop if not both.