Anyone have any experience with magnaflow direct fit cat? I have a 2004 wrx wagon and I needed a rear cat replacement and I got this one Amazon.com: Magnaflow 23147 - Direct Fit Catalytic Converter: Automotive It's like 6 inches too long though!!!!! wtf!?? I'm assuming my only option now is to have a muffler shop cut and weld it so it fits?? Thanks.