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That is different though, that hard attaches the diff to the subframe. The Z4 brace braces the chassis to the chassis and probably does very little. Also don't buy anything VTT, it's all trash.

You actually want to long-press the safety button which will turn EVERYTHING safety related off. Try that, just to see if your issue changes at all. Which could help focus on the issue. Long press this safety button until the light goes fully out:

Reading comprehension. ;) Femto + DP + install + tune. TUV parts cost more than what we are used to in the states. So approx pricing, in same order: $1200 (Femto) + $1500 (DP) + $450 (Install) + $600 (Tune license) + $500 (custom tune?) = $4,250

Need to use TUV approved parts in Germany.

Just to make sure, do you have steering assist off?

BMW also has metal pans for the ZF auto on M cars. I retrofitted a M5 pan to mine. There is no pan on the manual as there is no valve body bit.

It's bolted on, that is the battery box so not super thick metal. You need to drill AFAIK. If you have an aftermarket catback, 50/50 on if it will clear the metal braces.

That has been posted like 100x now. It's the bracing from the Z4. Been available for years.

So you can't show your work. Got it.

Ah man, I was really hoping to see a log showing IAT's 25F under ambient on a B58TU. Literally every.single track driver would be using the same setup shortly after and never waste $3,000+ on a manifold.

Yes. California reads CVN off the DME and if it doesn't match a unchanged OEM ROM, off to state ref you go and your car is looked over with a fine toothed comb. There are other states the do the same (MA is one of them) but don't have the equivalent of state ref yet.

Pretty sure Germany would disagree with that claim. You know, given their ACTUAL HISTORY, they tend to be a wee bit sensitive about things like that. It's Technischer Überwachungsverein if I am not mistaken, basically their form of inspections, just like we have at varied levels here in the...

Going to depend on driver, car setup, tracks, etc. For me, they drop in pace long before they cord. I get about 4-5 track days out of them (full track days with 40+ laps, not time attack 3 glory laps), before they drop in pace. Usually about 4 solid days at relatively same lap time pace. For...

What I really want to see is a datalog showing 25F *under* ambient IAT's on a B58TU. As claimed. Theory and white papers are cool, but real world data is where it's at.

Let's maybe keep the sea water cooled marine boat diesel engines out of this discussion. ;)

https://signaturewerks.us/collections/toyota-a90-supra

The ZF 8HP51 auto is also rated for 510nm/376tq and we all know plenty of owners pushing MUCH more than that.

25F below ambient?!?!? Hahha. You are definitely going to need to show your work on that one, on a Supra. I’ve yet to see anything close to that on tracked Supras spraying meth/water for cooling purposes. If you stated a 10-15F reduction in IAT, I would believe you as that is what I have seen...