i've never heard of a cop messing with a bike about signals, mirrors, exhaust, plate, stickers nothing... they dont really know the laws surrounding bikes or just plain dont know bikes.. i got pulled over on mine, pretty loud exhaust, no signals front or rear, plate was behind the rear mudguard so you can't see it at all, no inspection, no county sticker, no registration(on me anyways) but he let me go because i was the first person in weeks that actually had a motorcycle license

but i'm confused, you said its stock, but its a yoshimura? thats not stock