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im thinking of buying a set of lgm headers for my o3 ae vert. i had a magnaflow x-pipe and bb route 66 cat back system installed. i want to buy the lgm header package with the high flow cats but was wondering if i have to use the x-pipe supplied or can i use the magnaflow x-pipe. will everything match up that way or not. most of the x-pipes with header packages say they're off road x-pipes. any help? thanx
The LG header system is complete to the rear axle flanges, that will still bolt up to your B&B catbacks. You can buy The LG headers with or without cats, or both, and swap the cats for straight pipes whenever you want.
If you choose to buy the system with the cats, then it isn't an "off-road" system.
Either way, your Magnaflow X-pipe would become useless to you, as it's not compatible with the LG system, but there is good demand for X-pipes, and you should have no trouble selling it on the parts forum.