Jeffglen

Hi new member to mbworld, and just purchased a cabriolet 2002 clk55, and wondering if there is anyone out there that has put in one of the performance chips for the ECU and had any feedback.

Jeff

Harris

I know Renntech and Powerchip make them, but havent heard any feedback.

E55AMG99

I've got the PowerChip in my E55 and my CLK430. The midrange punch is huge! I highly recommend it! Be prepared to buy wider tires

6.3

How much of a difference does it make on the 430?

E55AMG99

they claim something like 17 peak HP additional but I haven't used my G-Tech yet. Bottom end still sucks but it pulls much harder in the middle. I can spin the stock tires during a full throttle 2-1 downshift. That never happened before. First gear now also shifts at 6000 instead of 5800 like it used to.

My E55 was measured with the G-Tech and it dropped from 5.0-1 down to a more consistent 4.9. Traction is a problem in the first 2 gears. Full throttle 2-1 downshifts without ESP produce wild tire spin and end swapping if I'm not careful.

gregc

I found a place in NJ that gets them from germany. send me a pm.

DMXtremeZ

which place in nj are you talking about?

MBZ4LIFE

Talked to the Renntech VP for Southern California yesterday (at the LA Auto Show). He said, Renntech can flash your ECU without taking out your existing chip and re-welding a new one. Visually, the Dealer couldn't tell you upgraded the ECU.

E55AMG99

Don't they all do it this way?

MBZ4LIFE

You may be right, but that wasn't the impression I got from the RennTech rep or the Brabus rep.

E55AMG99

LOL - Yeah, maybe some tuners do remove the chip

archdiocese1

Performance chips

Richard Galing

Some tuners plug into the cars dataport to alter the files...PowerChip removed my ECU at their Santa Monica office, & worked their magic.