Short shift kits - from $40-200

A short shift kit will shorten the throw when shifting.  Usually there are a few positions you can set the shift kit to, 30%, 50%.  The larger the percentage the shorter the throw, but at the same time the shorter the throw the more notchy the shifting will feel and also the harder it will be to shift, BUT you will have a much shorter shift which will allow faster shifts.  Installation of these is quite simple the hardest part is getting to it, at the same time of installing a short shift kit it may be a good idea to replace any shifter bushings that may be worn out causing loose, sloppy shifting.

** What short shift kit do you need - info provided by Dieselgeek.com ** Mid-99 through Late 1999 Golf/GTI/Jetta - These cars will have a black shift weight on top of the transmission. (click here for picture of weights) Late 1999 through Late 2001 Golf/GTI/Jetta/New Beetle - These cars will have a chrome shift weight on top of the transmission (click here for picture of weights). Also, the shift cable attachments will be the ball and socket type (click here and here for pictures). These year models can get the Audi TT part#8N0-711-051. Late 2001 and all 2002 Golf/GTI/Jetta/New Beetle - These cars will have cable ends that attach with shiny metal clips (click here and here for pictures). Audi TT Short shift install - http://www.reimundez.com/vwmods/mods/audittshifter.html

Sport Clutch kits - $400-600  Transmision: 02A   Clutch size: 228mm

More horsepower is what you need to go fast, but without friction and pressure your not going anywhere. The clutch provides the friction and clamping pressure to transmit the power from the engine to your wheels. Guidelines for the 228mm clutches: for under 220hp - stock pressure plate and stock disc; for over 220hp, use the sport pressure plate and sport disc.

  

Lightweight Flywheels - $200-400

Lighter flywheels will give you get better throttle response, quicker turbo spool-up, and faster acceleration.  You don't want to go too light though.  A flywheel has a purpose of providing inertia when you let off the gas in gear.  A flywheel that is too light will also make it difficult to get the car rolling (no inertia!).  It is recommended to only do this mod if you are also having your clutch done at the same time.

 

  

Limited Slip Differentials - $900-1200

A limited slip differential powers both drive wheels under nearly all conditions, instead of just one. With an ordinary open differential, standard on most cars, a lot of precious power is wasted during wheelspin under acceleration. This happens because the open differential shifts power to the wheel with less grip (along the path of least resistance). The limited slip differential, however, does just the opposite. It senses which wheel has the better grip, and biases the power to that wheel. It does this smoothly and constantly, and without ever completely removing power from the other wheel. In drag-race style, straight-line acceleration runs, this results in a close to ideal 50/50 power split to both drive wheels, resulting in essentially twice the grip of an ordinary differential. In cornering, while accelerating out of a turn, the limited slip differential biases power to the outside wheel, reducing inside-wheel spin. This allows the driver to begin accelerating earlier, exiting the corner at a higher speed. The limited slip differential also controls loss of traction when the front wheels are on slippery surfaces such as ice and snow or mud, providing the appropriate biased traction needed to overcome these adverse conditions. The limited slip differential provides constant and infinitely variable drive. Installation requires complete removal of your transmission so its a good idea to take care of your clutch and flywheel while doing this mod.