Spark plugs?

[Interceptor]

Hi all,

I can choose between NGK, Bosch and Denso Iridium for my 525i M50 - what do you suggest? What plugs are the best for performance, economy, etc.?

Thanks in advance!

[jj7]

Hi all,

I can choose between NGK, Bosch and Denso Iridium for my 525i M50 - what do you suggest? What plugs are the best for performance, economy, etc.?

Thanks in advance!

Personally i prefer NGK- BKR6EK, BMW uses those....

[632 Regal]

plugs is plugs, NGK is good. Whatever you do dont use any of them so called high performance plugs or you will have problems.

[winfred]

BKR6EK NGK OR F7LDCR BOSCH will work fine

[632 Regal]

i use bosch

[kngpen]

i use bosch

Where is the cheapest place to get them?

[632 Regal]

try a local foreign autoparts, might be able to special order them from a normal parts joint too. Dont ket them talk you into ant performance plugs cause they cant get the ones you need though. Mine have been kicking for 30k so fAr

[winfred]

in a pinch i've gotten bkr6ek's from hilo o-really when we are out of our own stock, can't remember $

[tim s]

an import parts dealer for the bosch. i think dealer got me for around $5.00ea.
tim s.

[Interceptor]

plugs is plugs, NGK is good. Whatever you do dont use any of them so called high performance plugs or you will have problems.

Check this out:
http://www.denso.co.jp/PLUG/iridium-e/index.html

They do call themselves performance spark plugs, but after all, they are made in Japan, so it sounds promising - especially if you have a 4 valve per cylinder engine where spark shape and strength means a lot.

I used Denso Iridium spark plugs on my bike a few years ago and was entirely satisfied. My friend also put them in an E36 M52 320i a few months ago and says the lower rpm range has enhanced, idle is more even and that consumption is down a bit.

I want to know if any of you guys had any experience with them on your sharks.

I'm considering them because I ordered the EAT chip and want to maximize the performance it will give me - after all, performance chips do enhance ignition time, so I want to give my bimmer a chance to breathe with full capacity.