California-based tuner European Auto Source upgrades a BMW Z4 M with a new supercharger.

The VT2-525 supercharger system is the latest kit released by ESS for the E85/6 Z4M platforms. With a 162whp and 80 ft-lb TQ gain after installation, this kit certainly isn’t for the faint of heart!

The ESS VT2-525 differs from its VT1-445 predecessor with a new Air/Air intercooler system, keeping intake charge temperatures nice and cool. This is especially helpful for extended 20+ minute sessions. An upgraded Setrab oil cooler replaced the OEM unit with heavy duty brackets to keep everything in place as if it were offered by factory.


Big injectors are included, the fueling alone is rated up to 475whp. With a jump in boost from 5psi to 7psi, the S54 transforms into a beast after installation. A huge air/air intercooler fits cleanly behind the factory bumper cover – giving a tease of what’s underneath the hood. Rotomolded intake tract rivals the factory pieces. Heavy duty hardware shows the kit is extremely well engineered. New billet crank and water pump pulleys are included.

ESS knocked it out of the park wit this kit. Those in the SoCal area, feel free to drop by European Auto Source and see the Z4M in person.


APR Performance GTC-200 Adjustable Wing
Arqray Titanium Race Exhaust System
AST 4200 Monotube Coilover Struts & Shocks w/ Swift Springs
ESS VT2-525 Supercharger System
Hankook RS3 Tires (235/35/18 front, 265/35/18)
Macht Schnell Competition Liteweight Floor Mounts
Macht Schnell Motorsport Performance Headers
Macht Schnell MS97 Spec Shifter Knob
Macht Schnell Seatbelt Receptacles
Momo Steering Wheel w/ Works Bell Quick Release
RECARO Aluminum Side Mounts
RECARO Pole Position Seat Seats (Black Cloth)
RECARO Slider Tracks
Vorshlag Adjustable Camber Plates
Work Emotion 11R-FT Wheels (18″x9.5″ ET25 Front, 18″x10.5″ ET22 Rear, Matte Gray Silver)