Originally Posted by NotQuiteRight
Most shops will "mock" up test pipes. They can build them 100% complete then re-install your factory cats and send you on your way. It's up to you to do the actual install because they simply can't do that last step.
True, but some shops around me won't even remove the stock cats unless an oem or direct replacement was going in. Screw emissions.
2008 (07/08) E92 M3 BPM Stage II Tuned by Mike Benvo, 6MT, Turner Test Pipes, Magnaflow Custom Catback Exhaust (Magnaflow X Pipe, secondary cat delete, Aero Resonators and Helmholtz Chambers),Vorsteiner CF Lip, Hamann Style CF rear diffuser, CF Rear Decklid Spoiler, BMW Performance Kidney Grills, CF Side Grills, OEM GTS Wheels, K&N Drop-In Filter, GP Thunder 8k Angel Eyes, Painted Reflectors.