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Discussion Starter · #1 ·
A few customers have asked for this package so we put it together! The group purchase covers the Precision Industries "Viper" Torque converter and the Quaife Differential.

The Precision Industries Viper Torque Converter increases performance by multiplying engine torque and will make a night and day difference in the way your car performs! Each converter is made specifically for your application. The result will be lower 60 ft. times and up to a 5 tenth improvement in your 1/4 times (depends on the car and available traction). This is one of the best "bolt-on" mods that you can do to a vehicle equipped with an automatic transmission.

Please include the following info with your Viper order:
Vehicle year, model, engine, gear ratio, shift RPMs, nitrous/supercharger, trans brake and street or strip use.

We will do an authorization for $200.00 to cover the core charge. That authorization will be canceled when your stock converter is returned within 14 days. This charge will be applied to your card if you don't return the core or if you would just like to keep your stock converter.

viperconverters - Viper Single Disk Lock-up Torque Converter
Core authorization - core needs to be returned within 30 days

The Quaife 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 Quaife, 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 (they don't call open diffs "peglegs" for nothing).

In cornering, while accelerating out of a turn, the Quaife 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 Quaife 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 Quaife Differential provides constant and infinitely variable drive. Power is transferred automatically without the use of normal friction pads or plates seen in other limited-slip designs.

The Quaife's unique design offers maximum traction, improves handling and steering, and puts the power where it is needed most. A definite advantage whether on the track or on the street.

The Quaife is extremely strong and durable and since the Quaife is gear operated, it has no plates or clutches that can wear out and need costly replacement.

The Quaife is great for street driving or racing. Racers don't have to put up with locking mechanisms or spools that created unwanted understeer under power, or in the case of front-drive cars, even tear the steering wheel out of their hands when cornering. Because it behaves like an open differential during ordinary driving, street drivers will have trouble telling it's there until pushing the car's limits.

The Quaife has been proven in everything from SCCA Rally to Formula 1. It provides autocrossers with such an advantage, it has become "required" equipment for a winning effort.

More and more auto manufacturers are specifying the Quaife ATB Differential as original equipment in their high performance models - for good reason - it works!

The Quaife ATB Differential comes with something else other's don't have:
a Limited Lifetime Warranty. This warranty applies even when raced.

48.309.190 Quaife Differential 5.7

48.309.185 Quaife Differential 6.1

Great discounts are available for each product seperate but an even better discount is available if we get 10 or more orders for this package! The total would be $1999.99 + shipping and the converter core. Orders can be placed on our website or by giving us a call at 1-877-482-9763. This will be running until Thursday, October 10th.

Have a good day!

ORDER LINE - 1-877-4-TBYRNE (1-877-482-9763)
E-MAIL - [email protected]


3,770 Posts
Discussion Starter · #2 ·
Some people have asked if we can break up this package so they can just get the converter or differential. No problem with that! The best deal will be the complete package but we can offer you a great price for each by themselves too!
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