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GM Cars
LEVEL 1
700R4 and 4L60E
LEVEL 2
700R4 and 4L60E
LEVEL 3 - INVINCIBLE
700R4, 4L60E AND 4L65E
Our Pro Street series exceeds many of our competitors' best and is our least expensive GM transmission. Suitable for most street or track applications, it's rated at 500 RWHP. This model is comfortable when cruising, but has considerable bite at WOT. Whether on a date or putting on a show, this transmission is a winner! Click below to learn more. Our Pro Race series is our mid-level offering and is suitable for up to 700 RWHP. The drivability of this model is reasonable even though the focus is clearly on performance. Solid shifts even at light throttle become quite aggressive at WOT. This durable transmission is designed for your heavy street or strip use. Click below to learn more. The Invincible series is our strongest GM transmission. It is overkill for most cars. With its additional strength upgrades and other modifications, however, its streetability is similar to our level 2 in our opinion. This transmission is the best of its kind in the world! Click below to learn more.
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4L80E 2OOR4
Now available: the Performabuilt 4L80E. The toughest overdrive GM automatic. Period. Click below to learn more. Now available: the PerformaBuilt 2004R Performance Transmission. Click below to learn more
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TH350 TH400
Now available: the Performabuilt Racing 350 transmission. Click below to learn more. Now available: the PerformaBuilt Racing 400 transmission. Click below to learn more
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