Answer
Nov 20, 2025 - 11:49 AM
No , The 3" exhaust connector is not needed for the factory cat back. The 3" is for aftermarket cat backs.
do i need the 3in exhaust connector on a factory cat back 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 19, 2026 - 06:30 AM
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