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      05-10-2026, 10:00 PM   #107
Gottagofast
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Drives: '25 M4 CS
Join Date: Jul 2019
Location: Canada

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2025 M4 CS  [9.87]
We are at the final stages of this build, at least for now since track season is underway and I would like to enjoy this car on the limit.

We've replaced the quite heavy steel boot lid with a much lighter CF variant, added a CF front splitter and CF side skirts. It looks incredible in person. In terms of body work, we just need to do some paint restoration which isn't a priority.

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Also managed to snag one of these thanks to Chrisyphus :

https://parteeracing.com/store/bmw-t...carbon-plenum/

That will complete the look of the engine bay as well as add a bit more power, enhance the acoustics, and might even shave a few pounds.

Can't forget to mention these super lightweight 18x10 Apex SM-10RS wheels wearing this brand new set of Bridgestone RE 71RZ tires in 275/35R18. The tires actually weigh more than the wheels themselves!

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The car is getting an alignment as we speak. We've changed the oil after driving it for about 300 miles and after we install the Partee Plenum, it'll hit the dyno for a custom tune and final sign off. I'm hoping for around 400whp, but whatever the engine can produce while remaining reliable is the most important thing.
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'26 M2 CS - '25 M4 CS - '11 E92 M3 6MT - '98 E38 750iL - '91 E31 850i 6MT
Gone: '23 M4 XD SPY - '00 E39 M5 6MT
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