My car is slammed and I have no issues with my BBK's. Not that helps you everybody will tell you to never use BBK I really don't know why I can even take my tranny out without any problems or having to remove them to do so. Alot of guys on here like MAC I hate MAC headers but that goes back to the fox bodies.
ive never had any issues with BBK, MAC leave alot to be desired in quality department. ARH and Kooks are the most expensive, lots of guys like the new design kooks since the have ball/socket collectors and are now all one piece. ARh has a clamp ctyle collector which are more prone to leaks. SLP has poor ground clearnce. can't speak on stainless works. BBK or kooks are probably the best bet. just depends how much u wantt to spend on them....$575 or $1400. power difference between them is probably no more than 5hp.