Although Im going to say this probably isnt your primary issue....Dont assume plugs and coils are 'not a question'


What SPECIFIC "bosch" plugs did you use? OE or one of their 'performance' versions?


Also, WHERE did you buy these? Tons of 3rd world counterfeits being sold online. Coils are notorious ....


Again, dont think this was the issue proir to replacement ( ) but just a heads up