Definitely an improvement with the stock IM and TB in the 3000-4000 range. Cylinder Airmass at 0.74-0.76g in this range, instead of 0.68-0.72g. At 3800 rpm MSD 0.69g OEM IM 0.74g. MAF shows around 195g/s at 3800 on stock IM vs 170g/s with the MSD.
On the top the MSD works a little better. I would say stock IM is better to drive with my current setup.
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