335i AT 6HP21 upgrades? - N54Tech.com

drdiabetes · **335i AT 6HP21 upgrades? -** 01-10-2021, 06:38 AM

Hi, I wonder if there is any upgrade for Automatic transmision zf 6hp21 for +700whp.

There are some AT guys doing under 5seg 100-200kmh..with aparently no issues.. how do they hold that power??

Level 10 didn't work
Nizpro give up with their development. Anyone knows why?
Anyone runing propulsive dynamics?? I saw that know precision raceworks send the kit.

I don't want manual swap or dct.

nyt · 01-10-2021, 08:05 AM

see my thread here.

Basically, clutches, zip kit, and nizpro shafts.

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There are also 6hp28 adapters about to hit market

ruskiracer · 01-10-2021, 08:58 AM

Your most economical bet would be switching to the 6hp28 with the adapter . Running 700 whp and trying to bring the torque in a little later and not it hitting so hard is gonna be your best bet

iqraceworks · 01-15-2021, 11:31 AM

I've heard talk of adapters....but is anything out on the market yet? I'm having a hard time trying to justify putting a bunch of money into a 6HP21 and hope it holds together........

nyt · 01-15-2021, 05:12 PM

Quote:

Originally Posted by iqraceworks

I've heard talk of adapters....but is anything out on the market yet? I'm having a hard time trying to justify putting a bunch of money into a 6HP21 and hope it holds together........

Looks like this is the closest to market.

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