Vadim @ FD

Ladies and Gentlemen:

VRP Tuning is proud to introduce HiFlow Exhaust Manifolds (HEM) for V8 Mercedes-Benz and AMG engines.

HEM features:

- Steel billet flanges for leak free seal and long life.
- 1800F HiTemp Ceramic Coating for Heat and Corrosion resistance
- Limited Lifetime Warranty
- Matched primary pipe diameters based upon HP output
- Easy installation that can be done by the owner or any shop.

- 27RWHP/22RWTQ gain on Kompressor engines

- 12-14RWHP/12-15RWTQ gain on Normally Aspirated engines.

HEMs are available for following applications:

2000 – 2006 S-Klass – AMG S55, AMG S55K, S430, S500
2000 – 2006 CL-Klass – CL500, AMG CL55, AMG CL55K
1999-2002 E-Klass - E430, AMG E55
2003-2006 E-Klass – E500, AMG E55
2006-2007 CLS-Klass – CLS500, AMG CLS55
2005-2007 AMG C55, AMG SLK55
2003-2007 SL500, AMG SL55
2003-2006 CLK500, AMG CLK55

To commemorate HEMs we are offering special introductory price until July 15th, 2008.

$1499
($300 off regular price of $1799)

To place an order please go to:

stevebez

- Matched primary pipe diameters based upon HP output

Is this larger primary than stock still or has this changed?

komp55

Since the stock engine reaches maximum torque at only 2,650 rpm, it would be nice to see a real world dyno chart for the HEMs that starts at say, 2,500 rpm. The HEMs appear to make nice gains in the ether region of the rpm band, but how badly do they kill low-end torque in doing do so? Or do they? It's very weird to see a dyno chart starting outside the rpm band that most daily driving occurs at; really makes one wonder what's going on below the chart's starting point.

stevebez

I agree ... although I would sacrifice a little low end torque (which I can't put down anyway) for some better top end...

vrus

Vadim likes to do dynos to simulate real world driving. He leaves the car in 'D', goes up to the gear he wants and then does the run. At that speed when you mash the pedal, if the dyno operator isnt quick enough and hits the record button the RPM will have shot up already..

That's why on this run the RPM start point is so high. Unfortunately, this is the only dyno run he has right now.

Taking some torque away from the bottom and moving to the mid and upper end is not a bad thing. The more power you have the more you should want this. These cars are so hard to hook with street tires and I dont like driving around with DR all the time.

The cars I have done for my friends and people that I see regularly all complain about the wheelspin and not being able to hook the car.

I am not sure what the torque curve looks like in the lower end but we'll do another run from 2,600RPM as soon as we get a chance.

jangy

Hmmm..... I was holding off on deciding to buy it or not, but I'll throw my car in to do a good dyno run? I need to pickup my airbox and parts anyway.

Vadim @ FD

Jangy, here is your 55 dyno with prototypes on, which is our VR600 Power Package:


You have that tune right now in your car, but no HEMs.