I am on the shore as well and have past the last three emissions tests with no cats, headers, header back Borla
I had an AA tune and never a problem, now have ESS supercharger and tune so I will find out next month how the set up will fair.
2002 BMW M3 [/B]Titanium Silver Metallic / Black / 6 Speed
Performance: ESS VT1 455 Supercharger, Agency Power Headers / Borla Header Back / Walbro 255
Suspension: Ground Control Street / School Coil-over 440/545 / AKG Motorsport Bushings all around
Wheels: ZCP Comps 18X9.5 18X8.5
Magic Powers: Radar-Mirror PLX Gauge set-up/
V1 radar detector / Laser Interceptor