Ignition coil Bosch or Denso

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.

I found aftermarket Denso brand to be quite good. Been on my 07 highlander for years.

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.

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 bought the Bosch 4 yr and 10k miles ago and haven't had issues.

I've switched from standard to the Bosch ones last summer and it significantly improved the acceleration on my 124 Abarth. Prior to the switch I'd see lots of misfires and "bumps" in the power delivery curve. The Bosch set was not a hard sale with being under 280€/260$ here in CZ. Highly recommended for anyone with power mods.

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

9-3’s eat coils; it’s a forever problem on my 9-3 that it seems like every 30k miles I’m spending $200 on new coil packs. It’s essentially routine maintenance. I ordered Bosch OEM coil packs off RockAuto and just now realized they have a warranty. I submitted a warranty claim and they sent me out brand new units. Wish I would have known this because it would have saved me lots of money.