UMI Performance

If you have raced your Mustang aggressively, on slicks, or even on the street and especially if your car is a 5-speed, you may have cracked torque boxes. Fox bodies don't have the best chassis to...

Stock trailing arms work fine for every day driving but when hard cornering and pressure is applied they are sure to add inconsistent handling. Our tubular trailing arms are designed to out...

Stock trailing arms work fine for every day driving but when hard cornering and pressure is applied they are sure to add inconsistent handling. Our tubular trailing arms are designed to out...

UMI’s new stronger conversion cross member is designed to fit the heavy duty GM 4L80E transmission into the 98-02 Camaro or Firebird. New cross member is bolt in, requires no drilling or cutting...

UMI’s new stronger conversion cross member is designed to fit the heavy duty GM 4L80E transmission into the 98-02 Camaro or Firebird. New cross member is bolt in, requires no drilling or cutting...

UMI is “Making 4th Gens Fast Again” and the 2330 road race k-member is a key component. This k-member removes 25 lbs off the front and features revised geometry to improve roll center height.This...

UMI is “Making 4th Gens Fast Again” and the 2330 road race k-member is a key component. This k-member removes 25 lbs off the front and features revised geometry to improve roll center height.This...

The torque arm relocation kit from UMI Performance is designed to remove the front mounting point of the torque arm off the transmission and protect the tail shaft from damage. General Motors tail...

This transmission cross-member is designed to bolt a TH350 automatic transmission into a 98-02 Camaro or Firebird. This cross-member is 100% bolt in and requires no drilling, no cutting and no...

This transmission cross-member is designed to bolt a TH350 automatic transmission into a 98-02 Camaro or Firebird. This cross-member is 100% bolt in and requires no drilling, no cutting and no...

This transmission cross-member is designed to bolt a TH400 (short tail) automatic transmission into a 98-02 Camaro or Firebird. This cross-member is 100% bolt in and requires no drilling, no cutting...

This transmission cross-member is designed to bolt a TH400 (short tail) automatic transmission into a 98-02 Camaro or Firebird. This cross-member is 100% bolt in and requires no drilling, no cutting...

UMI’s full length torque arm and relocation kit is a turn key solution to upgrading weak factory components. UMI’s 2205 torque arm features heavy duty construction and pinion angle adjustment...

We all know weight equals horsepower. UMI’s direct bolt-in replacement k-member instantly removes 25lbs of front end weight from your ride and helps your existing horsepower work for you...

We all know weight equals horsepower. UMI’s direct bolt-in replacement k-member instantly removes 25lbs of front end weight from your ride and helps your existing horsepower work for you...