I ended up going with Bosch and haven’t had any issues.
Just stuck a load of Bosch in mine, worked a treat, xHP throttle blip downshifts were sometimes jerky and causing transmission faults but now they’re as smooth as butt’uh.
Around 2 months ago, one of the starting coils failed. I checked here and some said that the stock "Delphi" coils are known for failing. So i changed all of them for "Bosch" coils.
Hitachi IGC0003 from Rock auto, 3 years, zero issues.
get the Bosch brand their the same as OEM trust me I know don’t get any other brand even though their going to be cheaper get the Bosch. Besides honestly most of the ignition coils is Bosch companies just throw their name on it to charge more
Get a Bosch and skip the brand logo. Same part and available…aaand cheaper. Same issue for me c63s.
Bosch working great for a few years now, cheap as dirt on rockauto
I believe Delphi is what people switched over to because the Bosch coils were failing.
This is a new Bosch coil (but also happened with old coil), wires, cap, rotor, and plugs as mentioned above.
One of my Bosch coils went bad within 13 months. Probably would have happened with Delphi for all my luck. Nevertheless, I returned all six to FCPEuro for lifetime replacement warranty.
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