Review on 🔥 MAS Set of 4 Ignition Coils Compatible with Lexus IS F Scion xB Toyota 4Runner XRS Matrix Tacoma Tundra – 2.4L, 2.7L, 4.0L, 5.0L – 90919-02248, 90919-A2001, UF495, 5C1419, C1426 by Roy Bush

I think you get what you pay for. After about 10,000-15,000 miles I had instances of either p302 or p304 which came on under acceleration. I thought they were candles. I didn't think it could be coils. The problem still appeared during hard acceleration (CEL flashes, engine shakes, power failure) and disappeared. As long as I kept the engine load low this wouldn't happen. However, after doing about 20,000 miles, one day on my way to work I went to start the car and after shifting into gear, p304 misfires, CEL flashing, severe shaking while the car was engaged. I diagnosed the problem by swapping the coils. I ended up removing all 4 and putting in my old 250k+ mile Denso OEM coils and haven't had any problems since putting the old OEM coils back in. The car is fast like me, I would advise you to use OEM branded coils (especially Japanese ones) unless you want to risk your engine and/or pay an arm and a leg for a mechanic to get one after 20-30k miles diagnose misfire.