I just installed Progress front and rear sway bars on my ep3, it makes a little clunk when going over certain bumps coming from rear...is this normal with these sway bars? Otherwise car corners pretty well, pretty stable.

 

yeah its normal. bigger bar more vibration

 

i think its hitting the exhaust, a friend of mine with a 2002 ep3 with only 3k miles has the same problem

 

There have been more complaints about the Progress rear than about any other bars. It's not because it's thicker (same size as CTR bar anyway) but because its bends are slightly different. An aftermarket exhaust can contribute to more noise, too, since the axleback tubing is usually not in exactly the same location as stock. There's not much clearance between the stock bar & exhaust anyway, so any changes can result in clunking.