3 hours is actually what the dealer lists for that job. It shouldn't take that long but I also had the challenge kit which has 6 lines not 4 and they charged me for less than 2 hrs labor. I went to the track about a week after having it done and with heavy use I felt the pedal was firmer for sure and also more consistent feel throughout the day. Made it easier for me to modulate braking and get consistent results. More precise I would say. If you don't track I doubt you will notice it with street use.
02 Tiag e46 M3|6MT|GC plates|MCS c.o.|GC bars|GC race control arms|GC bushings & bearings|BW eng. & tran. mounts|subframe kit|BW race shifter|BW Jaffster|Euro header|BW race|K&N c.a.i.|Epic race tune|Rouge race pulleys|Seibon CF hood|CSL bumper|ST-40|SR34|SS lines|half cage|Recaro profi|Profi 2 harness|BMWpedals|Apex studs|