Should I buy GM MDI instead of Tech 2 clone

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The Tech2 clone is definitely fine, but I think people looking for a good tool now should really look at an MDI clone instead.

The Future of the Tech 2

The Tech 2 remains an essential tool through at least the 2010 model
year. The GM MDI will not support past models when its diagnostic
capabilities are introduced. And, the Tech2 will continue to be needed
to diagnose all vehicles fromprevious model years. Remote programming
with the Tech 2 will continue to be supported for use on all 2007 and
previous vehicles.Additional information will be supplied in future.

HOW WILL THE G-M MDI BE USED?

The new G-M MDI can be used only in the Pass-Thru method. This means
you can use it as your programming tool, while your Tech 2/CANdi remains
available for diagnostics and other duties.

I have issues with it, however:

The GM MDI will not support past models when its diagnostic capabilities are introduced.
I’m not sure what this means. The GM MDI
WILL clearly support past model years with the Tech2win applications.
So I’m not sure what this statement actually means. The only thing I can
think of is that GM will remove pass thru support at a later date, but
since its all been cracked already, this shouldn’t matter.

The new G-M MDI can be used only in the Pass-Thru method. This means
you can use it as your programming tool, while your Tech 2/CANdi remains
available for diagnostics and other duties.
This statement implies that the pass thru method is a bad thing.
Considering the Tech2win application works perfectly with EVERY function
on all GM vehicles as far back as 1996, I don’t understand what this is
really saying. It implies that you can’t do diagnostic troubleshooting
using pass-thru, when in fact you can.

As far as I can tell from my testing, this is a basic sales pitch in
order to encourage people to keep the Tech2 as well as purchase a MDI2
unit – both of which are incredibly expensive if purchased legitimately
through GM.

In reality, you don’t need a  Obd2 scan tool Tech2
and a MDI2. An MDI interface is more than enough especially on our
older cars like the C5 corvette which GM will unlikely ever release
further PCM upgrades for given the fact they were discontinued over 10
years ago.

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Piwis II Tester piwis 2 With CF19 Laptop

New Panamera can only be diagnosed by using Piwis tester 2.
Based on current project planning, all earlier vehicle models will
gradually be changed over to the new Porsche Piwis Tester II by the end
of 2010. Porsche Piwis Tester I must be used for older models in the
Porsche workshop until end of 2010.

This is full set package, including Porsche piwis interface, software V18.10, Panasonic CF19 Laptop ready for use. Automotive diagnostic equipment
Porsche PIWIS Tester II PIWIS II Diagnostic Tool, is able to work with
Porsche cars from 1996 to 2018 year, special for the Panamera which can
only be diagnosed by it..

Porsche Piwis Tester II works with the old and latest Porsche cars.
It is equipped with the Panasonic laptop and original software for the
test. Porsche Piwis Tester II can help you diagnose and program the most
new and old kind of Porsche cars. For example: 911(997)(991),
Boxster/Cayman, (987), Cayenne up to MY 2010, Cayenne from MY 2011 and
Panamera.

Notice for this Porsche Piwis tester II

1. After finish diagnostic, please quit the connection, and quit to
the homepage of the software, then shut off the laptop in correct way(DO
NOT Press Power Button, otherwise the system will be damaged).
2. This Piwis2 we sell is best quality which is made in Tainwan, and it
is Semtec Hardware, which is 100% same as the porsche dealer has, not
J2534 hardware, the J2534 FTDI hardware comes with different PCB, and it
has no certification make it is not able work with all modules, not
support online functions.
3. Certificate is well installed, our Obd2 scan tool
Piwis II supports Online Functions, only two functions need to work
online: Teach keys immo function and Parts protection function.
Porsche piwis 2 comes with Software Version: V18.10
Covers Porsche’s vehicle lists to the whole year long till 2018
Can work with 2014 new cars Porsche Macan and add Porsche wiring diagram as well as service plan.
Software will never expire!!

Our advantages of this Porsche piwis ii tester :

1. Our price is very competitive, nearly the lowest in the market
2. Our computer is the Panasonic Laptop Toughbook CF19 MK1, Intel U2400
1.06GHZ 2GB RAM, which is first released by ICARECU in Jan 2018.
3. The PC screen start with Porsche welcome image
4. Support full languages and 90 days time unlock (Never expire)
5. Support all Porsche cars till 2018, including Porsche Macan
6. Can install Printer

How do I Register/Activate my VAG-COM software?

1 How do I Register/Activate my VAG-COM software?

All of our Current Interfaces have Activation built-in, so VAG-COM
should always be Fully Activated once it has been tested on a car. If
you have an older Interface without built-in Activation, or have
purchased an Interface somewhere other than Ross-Tech, click here for
Activation instructions.

2 What’s the difference between the Shareware version and the fully registered version?

All of our Current Interfaces have Activation built-in, so VAG Diagnostic Tool
will always be Fully Registered/Activated. If you have an older
Interface without built-in Activation, or have purchased an Interface
somewhere other than Ross-Tech, VAG-COM will operate in Shareware mode
until it is Activated. The differences between Shareware and fully
registered/activated versions are listed near the bottom of each
function page in the Online Demo / Manual and in the VAG-COM Function
Chart.

3 Is Product Support included in the price?

Absolutely. If you have a question or problem, please post it to the VAGCOM 18.2
mailing list, mail it to us directly, or give us a call. However,
please understand that we don’t know everything about every
VW/Audi/SEAT/Skoda ever made.