Greetings, people, are you interested in the fine PvP perks of engineering? Here are some details on Nitro boosts, Gnomish Lightning Generator, and Hand Mounted Pyro Rocket.

Nitro boosts: 3 Minute Cooldown (boot enchantment) - no Global CD, literally causes you to become slightly faster than someone who is rocking crusader aura+epic land mount. Lasts 2 seconds. Is slowed by stealth, vanish and any other snare type effects on the user. Is usable while prowled or stealthed.

Gnomish Lightning Generator: (trinket) - no Global CD - 30 yard range - 1 Minute CD - 1 second cast
-damage noncrit 2610-3190 damage
-can sometimes hit both you and your target (for different rolls on damage)
-nature damage
-can be used between moves while you wait for your 1 second or 1.5 second gcd depending on class
-Castable while moving.
-Requires you to face the target.
-Is absorbed by grounding totem, anti-magic shield, divine shield, and most of the time misses on players who have cloak of shadows.
-removes stealth from user

Pyro rocket: (gloves enchantment) - has a GCD- Instant Cast- 1 Minute CD
range of pyro rocket: 45 yards (longest range in game, ideal for healing classes to get into combat in the 2v2 arenas as it will reach from the middle of ruins of lordaeron all the way to the top of the steps of the enemies starting area. Thus making you 'immune' to sap)
removes stealth from user

Try out this cool macro:

#showtooltip Gnomish Lightning Generator
/use 10
/cast Gnomish Lightning Generator

another macro is to replace the 10 with a spell of your own but it is easiest to do it with a spell that is instant cast, ranged and has a global cooldown.. for example ice lance for mages and icy touch for death knights.

#showtooltip Gnomish Lightning Generator
/use (your spell here)
/cast Gnomish Lightning Generator

happy testing