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Steeler · 12-19-2023, 10:02 AM

The M54 is a pretty stout motor as is.

If you see yourself possibly FI in the future, I would add head studs to the build.
Internally I would leave alone.

Only other thing you might consider would be some more radical cams, but this also ties into further upgrades.

Externally, headers and a free flow exhaust can free up some HP, but this is RPM related and not kick in the pants upgrade to HP.

Honestly, best bang for buck is a lower ratio diff.
Moving to a 3.46 or 3.64 would be your best bang for the buck.

12-19-2023, 10:02 AM	#2
Steeler Colonel 2430 Rep 2,706 Posts Drives: Built not Bought 04 Z4 VF Join Date: Feb 2013 Location: Kitchener Ontario Canada iTrader: (2)	The M54 is a pretty stout motor as is. If you see yourself possibly FI in the future, I would add head studs to the build. Internally I would leave alone. Only other thing you might consider would be some more radical cams, but this also ties into further upgrades. Externally, headers and a free flow exhaust can free up some HP, but this is RPM related and not kick in the pants upgrade to HP. Honestly, best bang for buck is a lower ratio diff. Moving to a 3.46 or 3.64 would be your best bang for the buck. __________________ W2A Intercooled Vortech V3Si, custom ducting, Alpha N, 60# Bosch,2.62 pulley, multi port WMI, Severn Tuning(pokeybritches), Tial, magnaflow,SS race muffler, 42 design,3.91LSD, H&R, Hotchkis,ST coils,Konis, Megan camber arms, AKG SS, Nylon mounts, Poly bushings, Carbon interior, CF Aero.APEX
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