intake help

I recently purchased the K&N Typhoon Cold-Air intake. It may not be legal in New York State. Does it have any effect on my emission system?

Hey I own a 1993 Mustang GT. Its all stock with 3:73 gears I just perchased a Holley SysteMax II upper and lower intake with 30lb injectors and a 70mm throttlebody i have gt40 heads a 284r compcam and a powerdyne procharger. Will this setup work with the stock computer? If not how can i get it...

ok so im going with the on 3 performance turbo kit trying to decide on if im going 70mm or 76 mm turbo then what size injectors would i need and what intake would you guys recomend i was thinking BBK SSI