E coupe 350 CDI Chip tuning Box?
Original 231ps/540Nm
Kleenann 290ps/650Nm - 675€ - connecting only to the rail
Chipexpress.com 282ps/702Nm - 525€ -
DigitalTuning.ch 261ps/631Nm - 570€ in Bulgaria - ECU remap via OBD (but no warranty problems in Mercedes service, DigitalTuning guarantee)
But I'm little confused. I'm wondering which one to choose, and which one is more important: more horse power(ps) or more torqude(Nm) ?
Can somebody give me an advice.
I could be wrong though

I ordered one from Speed-buster.de. Will test their product with Dyno.
And will upload some pictures, video and results.
I wonder whether to put a sport filter K&N?
Does anyone know if the air filter of the coupe is like a sedan?
I ask becouse in my engine original filter is glued to the top of the air box lid - they are one piece! I found these product 33-2940 in K&N site, but the picture therе is different!
Аnyone have more information?


I ordered one from Speed-buster.de. Will test their product with Dyno.
And will upload some pictures, video and results.
I wonder whether to put a sport filter K&N?
Does anyone know if the air filter of the coupe is like a sedan?
I ask becouse in my engine original filter is glued to the top of the air box lid - they are one piece! I found these product 33-2940 in K&N site, but the picture therе is different!
Аnyone have more information?
The results form my Dyno run:
Serie/ Factory: 224 ps / 531Nm
With the "box": 232 ps / 582Nm (only 3.5% ps and 9.6% Nm)
The Speed-Buster.de promise in 25% Ps and 15% Nm ( announced: 289Ps and 621Nm).
Fuel consumption increase by almost 3 liters / 100 km
In the graph is green line is Factory, and the red is with box.
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Don't shop by power numbers alone, smoothness is much more important, if it's got crap drivability then you'll hate it no matter what power you can get out of it!

Double check if your engine is the 540NM or the later 620NM engine, they will need different maps in the tuning boxes depending which engine you have. make sure you order the right one.
Your dyno show pretty poor gains from that.... thats why i was wondering what setting did use when you dyno'd it?
also after getting DTUK did you dyno again for comparison? Please elaborate ur experience.....
I do have the revised engine which makes 241 HP and 455 torque.




