Just installed the 034 Motorsport Breather Kit yesterday. I was inspecting a coolant leak (which turned out to be the j-plug) and noticed that my breather hose was cracked and spewing oil. So, I pulled the IM, replaced the breather system with the more simple and durable 034 kit (Billet FTW!), and replaced the j-plug.
All in all the 034 Kit is good. I ordered the Late-AMB version. I have a few minor complaints with it:
-The Block breather to valve cover hose is about 2 inches too long. I'm not just being picky, the slack actually causes some bad kinks going toward the Block Breather "T". Enough to where it would restrict flow. If I adjust the hose to get rid of that kink, it creates a nasty kink in the split hose on the valve cover. Either way... no good. So, I just cut the excess off and it fits perfectly!
-The fitment of the Block Breather is a little sloppy. It doesn't fit as snug as it should. When I put the retaining clip in, it stills wobbles around. Seems like it needs a thicker o-ring to take up the slack. Either that or a thicker retainer.
-034 used one-time-use clamps on the block breather, but didn't seat the hose down on the lip of the billet breather. Instead, it was about a half inch too high which didn't allow the retainer clip to attach. The retainer clip has to wrap around the hose in order to attach properly. So, I had to cut the hose clamp, seat the hose properly, and use my own hose clamp to re-assemble. This really should be done properly at 034... or include extra hose clamps.
Here is the stock breather system. The block breather tube crumbled to pieces when I pulled it out. I had to pick some of the pieces out of the engine. That was tedious. :( You can see some of them at the top, on the ground...
034 Breather kit:
Before seating the hose on the breather. Notice the gap between the retaining clip and the breather.
With the hose properly seated (new hose clamp) and retaining clip installed.
Piece that had to be cut off at the top of the block breather hose before the valve cover breather split hose. Excess length was causing kinks. Cut the one-time-use clamp, pulled the billet hose connector then reattached with new clamp.
The tool that helped me through it all...
All in all, a good kit, but 034 Motorsport definitely needs to attend to these issues. I really shouldn't have to modify it as much as I did.
In summary, the 3 modifications I had to make were:
1. Seat the tube onto the lip of the block breather. Had to cut 034 one-time-use hose clamp and replace with one of my own.
2. Shorten the block breather tube before it attaches to the valve cover breather "T". And again, had to cut 034 one-time-use hose clamp and replace with one of my own.
3. **Not Fixed Yet** Use a different clip OR different/thicker o-ring to seal block breather to the engine.