I gut mine very easily (withem on the car still) I would say it was worth while...I noticed a hair of improvement...I also had an optimized Y and resonator replaced with staright through...and I had 2.5in pipe from y to the back where it splits again to dual mufflers. I loved the sound and it was a bit more peppy...I think it took me about 2.5 hrs...and I would say it was worth it. Especially since he has 100k plus on the car...they are probably not flowing as well when they did stock.
