Just like to know if you guys think this is a good price from firestone to replace coil 4 and 5...6 spark plugs...and clean the fuel system?? Thanx

 

Are the coils 159.99 each? I got a lifetime guarantee coil from AutoZone for $70 - I see they are now $98, but still a better deal than Firestone.

You don't need the Decarbonization treatment unless your fuel system is really bad. I use a Lucas fuel additive or Techron additive every other oil change (20K miles) and car is up to 200K and have never had fuel delivery problems.

I can see the high labor charge for the plugs cause they do take a while to replace. But, you don't need special tools and if you follow the same steps for a 3.5 V6 Camry, you can save yourself those $344.

 

I bought 6 coils from Amazon, ENA, all for $100 and they work great.