The Gotts Mod isn't going to fix a cat problem. It DOES seem to improve air intake at high RPMs though.
Try to deal with one issue at a time. Don't go hog wild and change a bunch of things at once. That kind of approach can create strange interactions that cause problems that are hard to diagnose.
- Jack
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2024 F150 Platinum SCrew 3.5L PowerBoost FX4, Peragon Tonneau Cover, LineX Bed, 35% Window Tint on All Sides and Rear, Full Nose Paint Protection Film, Husky Mud Guards, Lasfit Floor Liners, VIOFO Dash Cam
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