When I look them up, I get lots of different results. I don't know what an acceptable price/brand is because I'm seeing Magnaflow and Flowmaster x-pipes for just over 100 Jegs X-Pipe. I'm also seeing some extremely cheap options from "Jones Exhaust" running about 19.99 to 25.00 Jones Exhaust X-Pipe

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2005 X5 E53, 167k Miles: Kenwood DNX893S Head Unit, Mud Flaps (Rear Only) , Rim Shopping(WIP), Full Spectrum RGB Halos,