As written before on this topic,
the threaded booster pin needs to be shortened (where it connects to the
brake pedal), and the brake pedal´s clevis needs to be widened from M9
thread to M10 (and the counternut changed to M10 as well).
Other than that, it´s plug and play.

Raimund

Am 12.06.2021 um 00:43 schrieb Jeff Palmer:
> Thanks Raimund. This is exactly the type of apples to apples comparison I was hoping to find. Is there much modification necessary? Just the booster itself is required?
>
> Thanks again
> Jeff
>
> Sent from my iPhone
>
>> On Jun 11, 2021, at 2:43 PM, Raimund Feussner <ray@v6bus.de> wrote:
>>
>> I have my own big brake system identically on two of my Vans (front Audi
>> 57mm caliper with 312mm vented discs).
>> So far, I have been lucky I never needed the extra anti-fade of the
>> vented discs, but:
>>
>> On one Van I have the stock booster, on the other the 10" BMW version.
>> What a difference in comfort!
>> Because I know the brakes do identical jobs, I can definitely tell the
>> difference being caused by the booster.
>>
>> While a harder "surprising" stop with the stock one requires some
>> serious step-on-pedal,
>> the BMW version is much easier. No "standing-up", lifting out of
>> driver´s seat, no pulling on the steering wheel.
>> Both boosters are intact, the BMW version just makes the feeling so much
>> more passenger-car-like.
>>
>> Because the conversion is basically plug-and-play (except a little
>> thread-cutting M9 to M10), I definitely recommend it.
>> No brake bleeding required.
>>
>> Raimund
>>
>>
>>
>>> Am 11.06.2021 um 19:01 schrieb vw_van_fan_Mark:
>>> Maybe you should read more completely. My comment was a reply to a
>>> question about the BMW booster and nothing else. Changing nothing but
>>> the booster has nothing to do with switching pads.
>>>
>>> Mark
>>>
>>> OlRivrRat wrote:
>>>> On 10 Jun , 2021, at 1:26 PM, vw_van_fan_Mark <madvws@COX.NET> wrote:
>>>>> It doesn't increase the braking capacity in any way,
>>>> Â Â Â Â Â Â Â  I believe that that might pretty much be a Physical
>>>> Impossibility ~
>>>>
>>>> Unless, of course, You happened to have the Best Pads Available on
>>>> the Van
>>>>
>>>> before the upgrade & switched to the Worst Pads You could put on the
>>>> Upgrade ~
>>>>