MHD Stage 2 with stock primaries?

Kruppa · 12-06-2023, 12:48 PM

Anybody have experience running MHD Stage 2 tune with stock primary dp’s? I’m not going catless primaries for a few reasons. I have intake, inlets, intercoolers, catless secondary, exhaust. They claim 780hp with full catless but curious what to expect with stock primaries? I have CarBahn stage 2 now so I assume even with stock primaries it will be a big bump in power…

pbonsalb · 12-06-2023, 12:57 PM

I would verify with the tuner that retaining stock primaries is OK for the Stage 2 tune that is designed for full catless. I am aware of one person who retained stock primaries but had his tuner review his logs and do a custom tune. That car trapped around 140 mph in the quarter on 93 plus E30.

12-06-2023, 12:48 PM	#1
Kruppa Second Lieutenant 437 Rep 239 Posts Drives: 2023 M5 Comp & 2024 X7 Join Date: Nov 2017 Location: Charleston, SC iTrader: (0)	MHD Stage 2 with stock primaries? Anybody have experience running MHD Stage 2 tune with stock primary dp’s? I’m not going catless primaries for a few reasons. I have intake, inlets, intercoolers, catless secondary, exhaust. They claim 780hp with full catless but curious what to expect with stock primaries? I have CarBahn stage 2 now so I assume even with stock primaries it will be a big bump in power…
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12-06-2023, 12:57 PM	#2
pbonsalb Lieutenant General 5234 Rep 10,616 Posts Drives: 18 F90 M5, 99 E36 M3 Turbo Join Date: Feb 2011 Location: New England iTrader: (4)	I would verify with the tuner that retaining stock primaries is OK for the Stage 2 tune that is designed for full catless. I am aware of one person who retained stock primaries but had his tuner review his logs and do a custom tune. That car trapped around 140 mph in the quarter on 93 plus E30.
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