TCI 2.100" Diameter Speedometer Gear Housing 40-45 Tooth Gears - 2004-R/700R4/TH350 011290 Retard the ignition timing 1

Retard the ignition timing 1 degrees-3 degrees per pound of boost

Includes roller bearing as well as a 6-degree advance/retard

Vehicle Applications: 1999 - 1999 BMW 323is

Dipstick Kit

Precise vane placement for high volume cooling

TCI 2.100" Diameter Speedometer Gear Housing 40-45 Tooth Gears - 2004-R/700R4/TH350 011290 Retard the ignition timing 1TH250 TH350 700R4 BOP Driven Gear Housing.. Driven Gear Housing for TH250 350 700R4 BOP with a 40 45 Tooth Count Speedo Gear Speedometer gears include both the drive gear and the driven gear. The drive gear refers to the gear that is on a transmissions output shaft. The driven gear is located in a removable housing, usually in the tailhousing, of transmissions. Be aware that some transmissions will have different driven gear housings depending on the