Expected a better product at this price.
First challenge. The supplied washers are not large enough to accept the supplied bolts. How could this possibly be overlooked? The front left pipe that attaches to the cat took too much torque on the nut to attach as there is not enough angle in the new flange. I'm concerned about the stress cracking an exhaust manifold. Looks good, sounds good, but the instructions could be more detailed.
Removal of original equipment was a PITA but the Monster Exaust install was easy. The system sounds nice on the low end and is quiet at the top. The price was great and shipping was prompt. The best part of it all: I no longer have a hole in my exhaust and my mileage has increased from 12.9 to 13.5 in the city albeit I am a granny on the pedal.