Pipes (G1)
Pipes is an Autobot in the Generation 1 continuity.
Pipes is an excellent soldier, tough, brave, and very strong, and otherwise worthy of little note, except for his unusual ability and eccentric hobby.
His ability, which he is (to be fair) not the most proficient at controlling, is to emit clouds of corrosive gases from his exhaust pipes. This is possible in both modes, but is far more useful (except to annoy motorists) in robot mode, where the pipes are on his arms.
If he stays at it for at least ten minutes, these noxious gases will eat through a 2" slab of ordinary steel (special alloys take longer). His own skin is well-protected against these gases, but in battle the coatings may flake off, and if he does not notice this (as frequently occurs) he is vulnerable to his own attack, with unpleasant results.
So much for Pipes' ability. When he came to Earth, however, he became enamored of the fleshlings' primitive and ingenious technology, and could not resist taking home cast-off examples when on missions. Eventually, a previously disused area of the Ark became his own personal museum of nose hair trimmers, patent rulers, and other worthless but fascinating ephemera of the throwaway society. Ask him and he will be glad to show you, and talk for endless hours about each prized find.
Only Wreck-Gar can be said to really enjoy an extended tour of Pipes' little museum, but Pipes is a good soldier and a friendly soul, and his comrades generally allow him his little eccentricity.
Fiction
Generation 1 Cartoon
Marvel Comics
Dreamwave Generation 1 Comics
IDW Generation 1 Comics
Toys
Generation 1
Pipes is a blue [retool|retooling] of the 1984 Autobot Huffer. He is changed quite a lot; his front is Huffer's back and vice versa, and his cab transforms differently.

