I know exactly what you mean man, those stock cat bolts are stupid tight, me and my mechanic wasted 3 hours working on plans to get the damn thing off, finally we decided to stop being stubborn and used socket extensions, took the air box off both sides and used an air ratchet. You could use a pneumatic saw and cut the bolt off..
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2011 Mustang 5.0 | 3.55's | Lethal Performance off road H-Pipe | Magnaflow Muffler Delete | JLT CAI/Bama tuned 417whp/ 404 ft/lbs
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