2025 M240 B58 Variant TU1 or TU2?

M240xSI · 01-27-2025, 08:33 PM

Does the 25' model year of the M240 have the new B58TU2 or the B58TU1? I've read conflicting information. I've seen 25 model year G20 M340s come with the B58TU2(technical update 2) have an entirely new downpipe design. I also believe it now has port injection.

I purchased a 2025 M240 immediately did the AA catted downpipe along with DINAN intake and axleback exhaust and everything fit perfect. Very happy with the car and has nice smooth power. I came from a RENNtech tuned C43 AMG and so much happier now.

inevitab1e · 01-27-2025, 09:47 PM

The '25 has the Gen 2 B58 (TU1)

01-27-2025, 08:33 PM	#1
M240xSI New Member 3 Rep 10 Posts Drives: 2025 M240 drive Join Date: Nov 2024 Location: Pittsburgh iTrader: (0)	2025 M240 B58 Variant TU1 or TU2? Does the 25' model year of the M240 have the new B58TU2 or the B58TU1? I've read conflicting information. I've seen 25 model year G20 M340s come with the B58TU2(technical update 2) have an entirely new downpipe design. I also believe it now has port injection. I purchased a 2025 M240 immediately did the AA catted downpipe along with DINAN intake and axleback exhaust and everything fit perfect. Very happy with the car and has nice smooth power. I came from a RENNtech tuned C43 AMG and so much happier now.
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01-27-2025, 09:47 PM	#2
inevitab1e First Lieutenant 101 Rep 350 Posts Drives: 2023 M240i G42 Join Date: Feb 2017 Location: there iTrader: (0)	The '25 has the Gen 2 B58 (TU1)
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