Originally Posted by Chriskm3
I asked if the muffler shop can produce a test pipe eliminating front cats, but was rejected due to emmisions clause. They are not allowed to remove cats due to emmision requirement.
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.