Never had issues with the Red Bosch ones I got from Shopdap.com But plugs, I preferred the NGK Ruthenium HX over the Laser Platinum, and Iridium-IX
I have used the 027 coil in a beetle with with points and the coil was getting hot. It was solved by using the 039 coil (Bosch grey).
Had thrown some 2 years ago and still running clean as ever
I purchased the MSD coil upgrade kit, swapped out the coil pack, new spark plugs / wires, fresh oil / filter. Fired her up and she purred like a kitten.
You can also spring for the MSD coil, about twice as much but the boots are attached better I think, where the OEM part might have the boots rip off or the springs get caught up.
I replaced the coil with a MSD high performance which was actually cheaper than any other brand, and had significantly better boots on it to keep the water problem from happening again. Haven’t had an issue in 2 years.
I got MSD Street Fire coils to replace mine and its been 4 months so far and they're running strong.
I have them with APR Stage 1. R8 coil packs are not really an upgrade that people make them out to be... red = more performance.... Sure they came out of a R8 and V8 Touareg "BAR" engine code... but the coils make enough current to get a spark. The spark plug does the rest, and the features of the spark plug help with getting the air-fuel mixture ignited and burned. Because of the popularity of the red coils, you can often get them cheaper. I think last time I paid about $100 for the Bosch red coils from ShopDap.com
I decided to order the OEM Bosch coil off of FCP Euro. Same issue about a 1/4inch too long. Being kind of annoyed and noticing that they're pretty much identical decided to pull the rubber boot off the old and swap it with the new one.
The car now runs a lot better, however, I think the slight difference in ignition coils is making the car run slightly choppy at high rpms
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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