Thanx, I did read your posts, I figure if I break a bolt or two, the head will probably have to come off for me to drill out the broken bolts!! I’m no stranger to this sort of work, I would just rather not have to!! Unless of course the white residue is caused by a coolant leak into the exhaust! Wish me luck! My new cats/headers are on the way!!! I’ll post ability my experience once I’m done! Thanx!!

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2003 X5 3.0i (02/2003) sport package, Sapphire black metallic / Black Dakota Sport seats. compass mirror retrofit, trailer hitch retrofit, Prodigy P2 trailer brake controller installed, PDC retrofit, Lumbar support retrofit. heated rear seats retrofitted. Running boards retrofitted and subwoofer install in progress. 4.8is Brakes installed front and back. Bluetooth TCU installed, Rear Fog lights installed. Retrofitted reclining rear seat backs.