[MB_AD]

Hi everybody

Tomorrow my supersprint muffler will arrive from Italy and next Saturday the sport air filter will arrive from England.

Now i looking to buy an ECU so which one is the best for my car with highest hp/torque.

And what about iridium spark plugs from NGK company?

[Alx]

Spark plugs are no biggie, try to stick with Kleemann for stage 1 upgrade.... They change the pulleys and upgrade the ECU with no red flags if you bring it to MB for service...

I had it all done on my 2003 CL55...

Renntech would be my second choice....

[Gullwing]

There was a guy here in Vegas who decided to put new plugs in his CL65. Too bad for him the plugs were way too long and hit the pistons.
Just keep that in mind, make sure they are the correct parts.

[MB_AD]

Originally Posted by Alx

Spark plugs are no biggie, try to stick with Kleemann for stage 1 upgrade.... They change the pulleys and upgrade the ECU with no red flags if you bring it to MB for service...

I had it all done on my 2003 CL55...

Renntech would be my second choice....

I spoke to kleemann dealer today and the guy told me the ECU will give me from 20 to 25hp and in the website it written it give me from 8-10% so this will be 28 hp at least which one i have to believe.

[MB_AD]

Originally Posted by Gullwing

There was a guy here in Vegas who decided to put new plugs in his CL65. Too bad for him the plugs were way too long and hit the pistons.
Just keep that in mind, make sure they are the correct parts.

If the spark plugs from NGK is for my car but with different matirial like iridum which is better than stock platinum in my car is it will effect badly?

[Gullwing]

I don't know much about the different types of plugs, but I think if they have the same heat rating they should be ok.
When you get the new ecu, ask what plugs they recomend.