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What: Peloquin Torque Biasing Differential

Why: Handling. Handling. Handling. This is the second upgrade I would put on any car. If you're use to driving a front or rear wheel drive car, and you've ever squealed your tires and looked back only to find one burn mark instead of two - it's because the differential in most stock cars send the power to the wheel that's "appears" to have the most traction - which is the one that's spinning freely... more often than not, however, that wheel "appears" to have better traction because it has no traction at all and hence can rotate freely, unlik the other wheel.

A TBD will distribute the torque across both wheels - in this case in a 60/40 split. So when you squeal the tires, both wheels will be spinning. This translates in to 2x the traction and reduces torque streer to a minimum.

This really proves it's worth when you corner - normally when cornering a stock car will have the outside wheel turning much faster than the inside wheel, which starts to cause the squeal even on a modest turn. With a TBD, both wheels are moving at approximately the same speed, eliminating the inside wheel from dragging across the pavement on a turn. This allows you much, MUCH better control during a turn, and especially coming out of a turn - you can slingshot around a turn and come out of it at full throttle, something a non-TBD is unable to do.

The TBD also has the added benefit of better traction in wet/icy/slippery conditions, since you have both wheels pulling your car along instead of just one.

What I would do differently: Probably nothing, since it wouldn't be all that practical. However, I would like an adjustable TBD. Unless you have unlimited funds, it's not really practical for a daily driver, though.

Where:

Many places