GMP Performance

Kleemann has decided to spread some pricing love to the rest of their product lineup from their January and February Header/ECU packages to include the W204 C-Class. Take advantage now during this incredible sale.

ECU Upgrade


M272 M156 M273 $1495

EGS/TCU Upgrade

All V6 $795


Boost Kits

M271 200k $1295
M271 180K Kbox $795
M271 KDbox CDI $695

B]Headers[/B]

M271 $995
M272 $1495

Azn_C300

when will this be over? I heard there were issues with fitment of the M272 headers on C300 models? Confirm?

cybertechc300

and how many horsepower will it add to the C300 models? and please confirm if there are any modifications needed to fit the C300

mat2hu

Same, how much hp gains on the C350 as well.

Krytech

Here is the dyno charts for a C350 I received from Cory a while back.

Doing just the headers shows 295HP & 296Tq (foot pounds)

Doing headers and the ECU shows 319HP & 302Tq

Isn't the ECU upgrade always priced at $1495??

micropower99

Looking for dyno charts/numbers for the C300

cybertechc300

same here..and can you guys verify the fitment problems? or does anyone know if there are fitment problems on the C300

Aachen1989

Looking for dyno charts/numbers for the C300 +1

TheDarkSide

Is it just me or does it not make sense that the same ECU tune can be used for both the 350 & 300. They are tuned differently from MB, thus they should be treated differently.

Krytech

They are indeed tuned differently. But the price is the same. They have different tunes for the same engine too, for instance they have a regular tune for the C350 and another for a C350 with their headers installed.

GMP Performance

Sorry guys I was not in Friday. Took a long weekend for Easter.

There is no time limit for this special at this although this sale should increase sales and availability will be affected.

Cory @ Kleemann is still waiting on his first shipment of M272 headers to arrive. They are in the production phase so if there were any fitment issues during the R&D phase should be worked out.

GMP Performance

M271 or M272?

tlbenzc350

So the headers fit the C350 w/o any issues or was it just the C300 there was fitment issues?

GMP Performance

The sale is mostly on hard items. There are price cuts on the bi turbo software but most of the normally aspirated C Class software 63 350 300 have stayed the same. This post is shows the current pricing of everything they have to offer or is atleast in productiong such as the headers for the M272.

GMP Performance

Cory is unaware of any fitment issues yet for the M272 as they have not arrived yet. As for the 300 or M271 I don't beleive there are any issues either.

micropower99

The 2008 C300 (I'm guessing it's the M272?). How much of a hp/tq gain would we expect to see?

Krytech

I just got an email from Cory this morning regarding the headers for the M272 engine in the W204 chassis. According to him, and I quote, "We are currently shipping headers for the C63 only. Unfortunately, the V6 headers are not yet ready."

Last month he told me that the headers attach just fine to our engine but it's the down pipes and design of the header collector that do not line up with our exhaust. They currently line up with the SLK350 and can easily be modified by an exhaust place to work on the W203. When he told me this last month (March 23rd) he said they were a good 6-8 weeks out.

If you want to know right away when they are released you can sign-up for their newsletter at the following link.

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cdye12

Word on the street is that they're going to be ready for shipment in the June-July timeframe. Don't take that as gospel as it's just RUMINT. I'm looking forward to the headers though, that's for sure...

phatboypimp

What are the trade-offs for the HP and Torq gains? Economy?

iapboy

What are the details for the
Boost Kits
M271 200k $1295

is there any details on gains?

Azn_C300

So the headers line up, but the downpipes don't line up to our exhaust? Did he happen to mention if this is going to be fixed? I'd much rather have all parts line up out of the box without having to mess with any customization piping to get everything aligned.

hmm...

Edit: nm, after talking with Cory, he confirmed that the m272 headers have not yet been released for our chassis....only for the r171 chassis. Guess we keep waiting then

CrAZyVeGAsBoY

wait so ur saying a C300 with the headers and ur custome tune your gonna get around a 91hp increase?

Krytech

On the 3L engine, assuming you pick up about 8-9% so you'd be looking at about 245hp. From what I read on an slk forum, they give a nice audible tone to the exhaust, a fair 7-8% HP gain and a nice 10-13% gain in torque.

That said, there are people out there that laugh this off because they say you can't gain anything in our non-amg normally aspired engines. I don't claim to know one way or the other. Unless proven otherwise, I'll tend to blindly trust the big name tuners like Kleemann and Renntech who have a reputation to protect.

If I do these mods I'll certainly be doing before and after dyno's and hopefully 1/8 or 1/4mi runs for comparison. Dyno pulls are pretty cheap these days.

I'd like to see an improved airbox for our engine. Headers will help it exhale, ECU will enrich the air/fuel mix, timing etc, but we still need to help it inhale more air. K&N's will only help so much.

ulovemybenzo

anyone ever got these headers?

Azn_C300

not available yet for our cars, but I do know some who have kleemann headers on 203s and Petje has it on his m271. All report good things about them.