We currently offer 24 different gear ratio spreads for your high performance vehicle.
Thanks for your interest in Underground Racing Powertrain Technologies.
As you can imagine, it isn't easy getting a transmission to live behind an Underground Racing engine making anywhere from 1,300 to over 2,000 hp. Nonetheless, we've been pioneering modifications to the Graziano Transmission Group box ever since we overpowered the first one nearly four years ago.
For the Gallardo Manual or E-Gear box, we currently offer 24 different gear ratio spreads for your high performance vehicle. From drag to mile, roll racing, or 60-130 we have a gear spread to ensure that your car is using its power as efficiently as possible.
Or if your transmission has gotten noisy, with a bit of a howl while cruising or a squeal or chatter while turning, we have a refresh service, which is ideal while the trans is out when getting a new clutch. Plus we can spice up the stock box with a blend of oem style gears for a few more mph or reduced rpm while cruising, without sacrificing the quietness or smoothness of the stock box.
We also offer transmission case augmentation and the latest in proprietary alloys and gear tooth profiles, with upcoming asymmetric tooth profiles for the ultimate in strength and efficiency.
Performance 