Answer
Feb 27, 2026 - 09:45 AM
No , you do NOT need O₂ spacers if you’re getting a proper tune.
Do I need the o2 spacers if I am getting the car tuned after the install? Lethal Performance by Kooks 1-7/8 Headers & Competition Only Connection Kit (2015-2025 Mustang GT 5.0L) - 1151H412-LP
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Open Feb 27, 2026 - 09:45 AM
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