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Thank you for the info. I too came across aftermarket headers at a real good price. An internet store called auto anything havs both sides for a little over $800. Magnaflow name brand with a ceramic coating on the inside. My XLR is a 2009 and the local Cadillac dealership explained that there...

I have the same problem on my 2009 XLR. I am told that the cat is in the manifold is that correct ? Would it still be possible to gut the cat if it is in the manifold ? By turning off the rear sensors is that the same as disconnecting them ? Also if this is done and the cat is gutted will the...