As long as the exhaust is cat-back it should be legal. I have a 2017 taco and have installed a trd cat-back exhaust and a trd air intake system. Better throttle response and power. Its smog legal also!
Costco sells a 6 pak led stick-on with batterys and remote. Have them under my bar and kitchen cabinets. Work great. Now have another set for my tacoma bed. They only cost 19 dollars.