I was pleasantly surprised with the performance of the Allroad. However, you can always have more!! I assume a chip and exhaust system would readily get to S4 type power levels. What is the most cost effective way to go? Does a new chip or exhaust void the warranty?

Have to be careful about how much the greabox can take since I've heard that the present torque output is pretty much at the limit of the tip...

hmmmm, just noticed that in North America the S4 is rated at 250 hp, in other markets in 265hp, that's why I was wondering how to get an Allroad up to S4 levels.

I just spoke with Ken Hoppen, one of the sons of Jo Hoppen, founder of Hoppen Motorsports.

Based on my conversation and positive feedback from my (aftermarket) mechanic, I'll probably go with these guys.

Check out http://www.hoppenmotorsport.com/company.htm

Jo Hoppen was the Manager of Special Vehicles for Audi of America, Director of Porsche Motorsports, etc.

The engineering group for MTM also came from Porche/Audi AG Engineering.

This is why my (aftermarket) mechanic uses them for Audis.

By the way, my mechanic told me that the Tiptronic transmission is not rated to handle more than 300 HP. Tiptronic owners also need to get an ECU for the transmission as well in order to synchronize the shift points properly to the new powerband. (I'm looking for any contrary opinions here.)

The OEM for the ECU is Bosch. MTM is the company
that modifies the ECUs.

In Germany, Audi officially certifies MTM modified ECUs for new Audis.

You can actually buy pre-chipped Audi's from the dealer which are fully warrantied. They don't do it here due to liability laws.

Warranty issues are subject to each dealer. Some dealers are fine with chipping and actually perform it themselves or recommend a shop to do
it.

Some dealers will nullify and void the warranty if they find a modified ECU is installed...making your life hell.

Prices on their web site are for swapped units. That is, you send in your stock unit, they program it and send it back. It's an additional $500 if you want to keep your stock unit. (Something you definitely want to do if
at all possible to avoid warranty issues. Also, if you start experiencing problems you want to be able to put the stock unit back in as part of
the troubleshooting process and make sure you don't lose your modified ECU at the dealer assuming they swap it out with a new ECU to solve the problem.)

Currently they don't have chips available for the 2001 Allroad nor the 2001 225 HP TT Roadster since they don't yet have the codes and specs for the ECUs that will be used throughout the model year (apparently ECUs can vary throughout a model year). The TT is even trickier since the ECU is programmed specifically for the chassis and
VIN number since it matches to the electronic ignition and anti-theft (imobilizer) system.

So what the difference in the tip in the A6 4.2 than the one in the S4 and allroad? I'm tryin to figure that out... As of now i am looking at going for importing a A6 4.2 avant, i love the new allroad, but i want a few more choices on color and options... Sense the A6 avant and the allroad are just about the same, i was thinking bout getting a A6 4.2 and a allroad, then combine the two into a 4.2 liter Allroad with the standard A6 avant interior trim... Any thoughts? Money is no issue in this as u might guess if i am bothering to import a A6 4.2 avant into the U.S. Also if anyone is lookin into a benz ML*** they aren't even worth the money, consider this, they don't even have climate control in the top of that model line ML55 and that will set u back about $70,000 U.S. dollars that and visibility isn't good either...