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Z OH 6 · 01-09-2021, 04:37 PM

If the car is going to be tuned, go with the 103mm. If not, you can use a stock ported TB but you likely won't gain any power, just a little better off-idle drivability.

01-09-2021, 04:37 PM	#7
Z OH 6 Drives: 2024 CT5-V Blackwing Join Date: Sep 2020 Location: GA Posts: 3,557	If the car is going to be tuned, go with the 103mm. If not, you can use a stock ported TB but you likely won't gain any power, just a little better off-idle drivability.