We are proud to announce production of our HiFlow Exhaust Manifolds (HEM) for following cars:

W211 E55 Kompressor
W211 E500
W203 C55
R230 SL55 Kompressor
R230 SL500
W209 CLK55
W209 CLK500
W219 CLS55 Kompressor
W219 CLS500

I have been looking into better exhaust header design for exhaust manifolds on 55s for some time now. Back in 2004 I have designed a shorty style header that is now sold by evosport. Although pretty, it's ultimate limitation on Kompressor cars is 1.625'' primaries. There is only so much exhaust that can flow through small diameter pipe.

We at VRP already offer a full-length race style 1.75'' headers, more info can be found on our website - www.vrptuning.com

This time around I had a bit more time and following criteria for the design.

1. It had to be a shorty design that will retain stock location for catalytic converters.

2. Easy, bolt in installation that can be done by a dealer or any DIY mechanic.

3. Lower price point, none of us likes to pay $5000 for headers.

4. Reliable - more complex the design, more welds it has, more chances for leaks and failures.

5. Most importantly - it has to make power.

After much trial and error, the design you see is what we are going in production with. I have tried several designs in my quest for equal length, but none could pass first four criteria. Either it required hands like a child for installation or will take a lot of labor to build, which raises the cost or will require moving engine from engine mounts for installation. Also in my past testing I also found that equal length designs work better on high-rpm, high compression, agrresively cammed engines - that are not found under the hoods of modern Mercedes and AMGs.


Final design has primary pipes of 1.75'', I moved last primary away from interferring with other three cylinders, opened up exhaust flange that mates to the exhaust manifolds to 2'' and most importantly added volume to the collector to reduce backpressure.


On a car equipped with our pulleys, 80 mm TB, K&N filters and Powerchip software we picked up 26RWHP and 23 RWTQ. The HEM allows the car to breathe on top. On normally aspirated engines, I expect the gains to be in 12-15RWHP range.

 

Very impressive Vadim , the finished product looks absolutely amazing

 

what about a 2003 s500???

 

MB_Forever: Thanks!!

F1: S500s will be next month. We will able to cover all of the V8s. Thank you for your interest, please PM vrus.

 

Looks great, when will the first E55 units ship?

 

Another solid effort... now to convince my wife that the current headers are "broken" and not covered under warranty...

 

Did you experience any decrease in boost?
If so, how much?

BTW, nice gains throught the RPM.

 

How much HP gain could you expect on a stock e55?

 

Very nice Vadim. Great stuff as usual.

 

Internal volume is increased from about 0.9 liters to over 1.2 liters (per manifold). A 30% increase in volume.

Also, the VRP manifolds weigh almost 50% less than the OEM ones. A few pounds here and there...

 

I wish these were available 6 mos ago before I got the Kleemann's.

 

Can you post the rest of the dyno graph showing the HP and torque measurements below 4,500 rpm?

 

great work vadim!

 

SLK55 application? TIA!

 

Look great! Nice value, too!

 

Anything for us 63 guys Vadim/Victor?

 

This is ridiculous, there are so many power mods to do!! I ha<3te you guys!

 

Bill, it could possibly fit if it works on the CLK500 and C55 AMG.

 

So...$1999.00 installed...does that cover coming down south and doing it?

Looks great.

 

Looks great Vadim. Looking forward to the W208 55 application.

 

Another Top Notch Product from VRP!

Looks Awesome, Vadim!

 

Ceramic coated?

 

Will these be available for us little guys with C43's?

 

Vadim:

Can you tell us the gauge of the steel used in the construction of these HEMs ?
Also, what is the flange thickness (thickness of surface contacting cylinder heads) ?
Do you have any warranty against cracking or leaking ? For how long ?

And to repeat phatmitzu's question - are these HEMs ceramic coated ?

 

And for the most important question of all.....when can I come give them the test drive review??