Eyas AbuZaid

u have a mercedes w212 engine m271 evo 1.8 turbo modified as following:

K&N drop inn design air filter

racechip ultimate

response control unite from racechip also

kleemann downpipe and rac cat.


i want to change my spark plugs, do any one recommend HKS spark plugs because its modified engine or should i stick with oem spark plugs?? and why

armysoldier1073

How is your engine modified? Use oem plugs, HKS are garbage. The why part I'll tell you after how your motor is modded.

Eyas AbuZaid

https://www.racechip.com/chip-tuning...-ultimate.html

http://catalog.kleemann.dk/catalog/e.../downpipe-kit/

and K&N

mainly these things

silvers2k

I am not familiar with the m271 engine, but it is recommended by most tuners for m157 to use oem stock plugs. I was considering the hks spark plugs at one point but decided to go with the oem plugs instead. In fact, I'm picking up my car now as I'm typing this with a fresh set of new orm plugs.

Eyas AbuZaid

i went the OEM, but you know what. i wish if there was a tuner here who knows about Mercedes cars that can give me advices

cheers

armysoldier1073

In addition to my E350, I also own a highly modded stock block Evo X. Many of us that tried them only had two out comes. It was either they created less power or the tips broke off in the cylinders causing valve and piston failures. A few weren't so lucky and their results were catastrophic.

We all use Oem plugs and have the zero issues. Many modded built motors use OEM. A few of those use a slightly colder plug for various reasons. My experience with them is its your car and your more than likely costly repair bill. YMMV