[MM70]

The engine compartment of my new M440 has two cheap looking OEM Strut Tower Braces.

Thinking of replacing them with theses;

https://www.dinancars.com/products/s...arts/D180-0013

Has anyone else done this and what did you use if so?

Thanks!

[Motorwerke_man]

It's an easy installation, direct swap on the 4-series because you already have the threads at the front support structure (M340 does not, need to use a bolt with a nut from underneath).

A bit expensive for 2 bars but without springing for the CPM stuff I think its the best looking solution on the market.

[MM70]

Originally Posted by Motorwerke_man

It's an easy installation, direct swap on the 4-series because you already have the threads at the front support structure (M340 does not, need to use a bolt with a nut from underneath).

A bit expensive for 2 bars but without springing for the CPM stuff I think its the best looking solution on the market.

CPM stuff?

Will I need a torque wrench to replace?

[AM340iMiami]

Originally Posted by MM70

CPM stuff?

Will I need a torque wrench to replace?

Need? No. Recommended? Yes.

[MM70]

Originally Posted by AM340iMiami

Need? No. Recommended? Yes.

OK, I'm a jeweler, good with my hands. How do I know how tight?

[AM340iMiami]

Nice and tight. Just don’t over tighten. If that helps any. Going to need to take it off at slow point to change air filter.

[MM70]

Originally Posted by AM340iMiami

Nice and tight. Just don’t over tighten. If that helps any. Going to need to take it off at slow point to change air filter.

I meant on the torque wrench. Not sure how they even work setting wise. been a long time since ship class in HS

[AM340iMiami]

Dinan comes with torque specs.

Their website has a pdfs of install directions so you can probably check it out there.

[MM70]

Originally Posted by AM340iMiami

Dinan comes with torque specs.

Their website has a pdfs of install directions so you can probably check it out there.

Their website says 15 minute install - but I see nuts. Are those for retrofitting 3 series cars. Do the bolts just bolt down with no nut on the underside for the 4?

[helmet91]

If you already have the OEM scaffolding... you just need this setup from Dinan (you reuse your stock bolts).

https://www.dinancars.com/products/s...arts/D180-0013

The other version with the hardware is for the G20 3er that didn't come with OEM braces and threaded strut towers like the 4er.

[MM70]

Originally Posted by helmet91

If you already have the OEM scaffolding... you just need this setup from Dinan (you reuse your stock bolts).

https://www.dinancars.com/products/s...arts/D180-0013

The other version with the hardware is for the G20 3er that didn't come with OEM braces and threaded strut towers like the 4er.

OK, great! So no nuts needed?

Will the Dinan braces actually improve handling a bit or is that just hype?

[helmet91]

4er already has threaded strut towers, you reuse the stock bolts.

Handling difference? No clue. I’d say it’s more of a cosmetic thing. The OEM bracing is pretty gross looking.