I didn't tell you guys the best part of the story:
Near the pipe I found a strange looking engine PLUS a fuel tank.
The engine has no air intake, and I'm not sure about what it's made of, but it glows in the dark.
I figured that many planets don't have carbon as plentiful as in earth, so that explains why the borrowed my tuned pipe.
I found an engraving in the engine : Legal for FAI (Fédération Aéronautique Intérgalactique).
About the tank it was written on the filling vent: D2O...seems the use heavy water as fuel. That explains the electrodes on the tank!
It also seems they favour 2 strokers, by the message in numbers they left:
87 57 127
101 65 145
32 20 040
104 108 150
97 61 141 E
116 174 164
101 65 145
32 20 040
112 70 160
111 6F 157
110 6E 156
100 64 144
32 20 040
115 73 163
99 63 143
117 75 185
109 6D 155
109 6D 155
97 61 141
114 72 162
115 73 163
33 21 041
Ion (ASCII) Muniz 
If you can't translate it I'll post the ansswer in a while