If you want the ultimate in precision and style while shifting your Ford five-speed, look no further than a Xada Racing shift knob. Xada Racing Products' innovative, one-of-a-kind, CNC billet aluminum shift knobs are available in anodized, chromed, or polished finishes. The Piston model gives your street rod's interior a feeling of a true musclecar; the Spinner version comes in a chrome and black finish, and its ball bearing-supported spinning center ring provides limitless entertainment. For more information, contact Xada Racing Products at (866) XADAPRO; www.xadaracing.com.

Indy Cylinder Head now offers an engine that is a street rodder's dream. Through extensive engineering, the company has taken the new 6.1L Hemi and upgraded it to a 426ci, 565hp monster. This engine has the raw horsepower of the past Hemi with the improved fuel economy, clean exhaust, and smooth performance of the present. These engines are dyno tested, tuned, and ready to ship. For more information, contact Indy Cylinder Head at (317) 862-3724; www.indyheads.com.

COMP Cams recently came to the conclusion that not everyone is looking to go racing or trying to get the most power out of their engine. Some people just want their engine to sound like it'll blow your doors off. With this thinking in mind, the company set out to develop a series of cams that would deliver unrivaled high-performance sound and idle quality. Thus was born the Thumpr Retro-Fit Hydraulic Roller Camshafts for small-block Chevrolet engines. What COMP hadn't counted on was the fact that these new cams actually made a lot of power as well. For more information, contact COMP Cams at (800) 999-0853; www.compcams.com.

Gear Vendors introduces its new T-10 Manual Transmission kits, making it possible to adapt an Under/Overdrive unit on the popular T10 trans. The unit is a two-speed planetary gearbox that bolts to the transmission, allowing the driver a direct drive (1:1) or Overdrive (1:1.286) option in any gear and at any moment. With manual transmission applications such as the T10, not only does the Gear Vendors unit add a fifth gear of overdrive to your classic four-speed transmission, its gear-splitting capabilities enable you to make full-throttle, clutchless shifts into Overdrive. Kits are also available for Muncie M20/21/22, Ford Top Loader, and Mopar 833 four-speed manual transmissions. For more information, contact Gear Vendors Inc. at (619) 562-0060; www.gearvendors.com.

There's no denying that most customs and rods look their best hugging the ground. The problem is once you get the stance where it looks the best, you can easily start running out of room for the exhaust system and dragging the mufflers on speed bumps, and driveway approaches can be embarrassing. Spin Tech has the solution with its complete line of oval tubing, elbows, transitions, and low-profile mufflers in oval sizes from 2.5 to 6 inches (available in stainless and aluminized steel). For more information, contact Spin Tech Mufflers at (888) 550-7746; www.spintechmufflers.com.