respdoc:

Your information is conflicting from what I received from Kleemans tech manager.
Find attached the actual responses to my e-mails from Cory at Kleemans.

Thank you for contacting KLEEMANN USA! We do indeed offer supercharger system for your Crossfire. Our kompressor system will increase HP to 330 and torque to 325 lb/ft. The supercharger system is priced at $9500.00 plus installation. The kit includes all necessary components for a complete installation. Installation typically runs in the $1300-1700.00 range, depending on which authorized KLEEMANN dealer you choose. For a complete listing of authorized KLEEMANN Dealers, please visit our website at www.kleemannusa.com Click on the contacts link, then USA.
Please let me know if you have any additional questions or concerns and thank you again for contacting KLEEMANN USA!

Kind Regards,

Cory Umemoto
Technical Manager

The addition of the supercharger will not effect the redline, although we do offer custom ECU upgrades for our supercharger system ($1000.00) which will add about 20 more HP and I can raise the redline of the engine 300 RPM. Our supercharger does not require any internal modifications- our system is basically a bolt-on system. Fuel mileage will decrease under "normal" driving- not drastically though, maybe 2-3 MPG, depending on the way you drive. We incorporate a bypass valve, which allows the supercharger air to be routed back into the intake system which reduces load on the engine/supercharger, and also improves fuel mileage. The supercharger will not increase exhaust noise. Our supercharger was designed to function perfectly with all stock engine components, i.e. exhaust manifolds, differentials, hood, etc. You can try accessing our new website which should have additional information regarding our V6 superchargers. Because we are a Mercedes-Benz tuning company, there won't be any specific information listed about the crossfire. The Crossfire is based on the R170 SLK platform, so just choose the SLK link, and you can view additional information.
The warranty question is a sensitive subject. I'm not familiar with Chryslers warranty, but according to the Mercedes-Benz warranty, whenever you increase the output of an engine by more than 10%, the drivetrain warranty will be void. KLEEMANN offers a one year, unlimited mileage warranty on all KLEEMANN components. To date, we have had zero engine or transmission failures.
As always, please let me know if there are any additional questions I can answer for you.

Kind Regards,

Cory Umemoto
Technical Manager

To answer your questions:

1. The AMG supercharger found on the Crossfire SRT-6 will fit the non-supercharged V6, however at great expense. not only do you need an engine wiring harness and ECU, but you will also need to lower the compression ratio, which basically means you will need to tear down the engine, and put the AMG spec. crankshaft, connecting rods and pistons into the engine. KLEEMANN's supercharger does not require any additional wiring harness or ECU, nor does our system require the lowering of the compression ratio. The AMG supercharger runs 1 BAR of boost (about 15 PSI), where the KLEEMANN system runs .5 BAR (or about 7 PSI). The intercooler KLEEMANN uses is about 40% more efficient than the AMG unit, which means less stress on your engine. AMG lowers the compression ratio, because the have to, due to the amount of boost they run, and their relatively poor intercooler.

2. KLEEMANN has been producing these V6 superchargers since 1999- before even AMG decided to add a supercharger to the 3.2L V6. In that time we have had zero engine and zero transmission failures. It is a common misconception that one needs a standalone ECU to properly tune a modified vehicle. KLEEMANN uses a mechanical increase in fuel pressure referenced by boost pressure to handle fueling. As boost is created, the fuel pressure will rise in a linear fashion. By increasing fuel pressure, more fuel will flow through the injectors and the injectors are able to keep the identical duty cycle and on-time as a stock vehicle. The ECU (it's not a Daimler Chrysler product, but a Bosch unit, using proprietary Mercedes-Benz coding) is adaptive, meaning based on driver inputs and inputs received from engine sensors, it will automatically adjust timing, fuel, etc. based on these inputs. Eventually it will learn specific "maps" based on your driving style and ambient conditions.

Have we done a crossfire yet? The answer to that question in no. However, the entire drivetrain in the crossfire is taken directly from the old W170 SLK- series cars, which is also the same as any other V6 Mercedes-Benz made after 1999. Like I said before, KLEEMANN has been producing and installing these systems on V6 Mercedes-Benz cars since 1999 with zero failures. It is my personal opinion that one should take with a grain of salt what one reads on these internet discussion forums. Yes, there is very good information available, however there is also some very misleading and incorrect information as well. KLEEMANN has 20 years of experience producing supercharger systems for Mercedes-Benz vehicles. This is a World Wide company with distribution centers on almost every continent. We take our business very seriously, and more importantly, we make product reliability and durability the #1 priority.

As always, please let me know if I can answer any other questions you, or your fellow Crossfire enthusiasts may have regarding the addition of our supercharger system to your vehicles.

Kind Regards,

Cory Umemoto
Technical Manager

KLEEMANN USA, Inc.
3390-B Fillmore Ridge Heights
Colorado Springs, CO. 80907
Tel: 719.473.6441
Fax: 719.578.0345
www.kleemannusa.com

See what I mean!
Go Figure!