2004 BMW E46 M3 ST3 Race Car

$80,000
[ Race Car / Touring / Sports ]

Purpose-built BMW E46 M3 TT/ST3 race car, built without compromise over the course of the past 7 years.

A fully sorted, reliable track weapon — no shortcuts taken. Full cage, MCS 2-way coilovers, AP Racing brakes, built ZF 5-speed, TCDesign-spec 4.10 diff, and a completely rebuilt cylinder head. Every major system has been gone through by professional shops (TCDesign, GSR, S Collective) with documented work.

The engine was fully rebuilt in 2022: New valvetrain, machined head, and a Genuine BMW oil pump. Most recently (2026) the car went through a complete fresh service: new clutch, engine mounts, all fluids, and a track alignment. Full build sheet and service history available.

Comes with spares including a second ZF transmission, ballast, and backup brake consumables.

Comes with spares including a second ZF transmission, spare clutch, ballast, two extra set of wheels, an extra DME with a max power tune, and backup brake consumables.

Engine

  • Epic Motorsports Alpha-N tune (approx. 300 whp / 330 hp)
  • Secondary air pump block-off plate
  • TCDesign E46 fuel starvation kit
  • Deka battery with custom mounting

Drivetrain

  • ZF 5-speed transmission swap (built spec)
  • Diffsonline TCDesign-spec differential, 4.10 gear set
  • Solid differential bushings
  • CAE shifter
  • Mason Engineering short-throw clutch pedal
  • CDV (clutch delay valve) removed
  • Enhanced transmission mounts

Suspension

  • MCS 2-way canister shocks with true rear coilover conversion
  • Race springs, front and rear
  • Ground Control front camber plates
  • Rear upper clevis mounts (rear coilover conversion)
  • Ground Control Race sway bar set, front and rear
  • Front control arm bushings
  • Rear race camber arms
  • Rear race trailing-arm bearings
  • Rear trailing-arm ball joints

Brakes

  • AP Racing front big brake kit
  • AP Racing rear big brake kit
  • Ferodo DS3.12 pads (front and rear) with burnished rotors
  • Front calipers rebuilt (seal kit)

Steering

  • TCDesign / Woodward steering column
  • Momo Race steering wheel with quick-disconnect hub

Wheels & Tires

  • Apex VS-5RS 18×10.0″ (two sets)
  • Apex EC-7R 18×10.0″ ET25 (one set)

Chassis

  • TCDesign rear half-cage tied into upper rear subframe mounting points
  • TCDesign front cage with motorsport gussets, tied into front shock towers
  • Rear subframe lower reinforcement plates + solid subframe bushings
  • RTAB pockets welded and reinforced
  • Lang Racing carbon fiber roof
  • Lexan rear windshield and rear quarter windows
  • Widened front and rear fenders
  • TCDesign custom dash and center console
  • Driver and passenger false floors + dead pedal
  • Flat trunk floor / spare wheel space removal
  • Full interior strip and repaint

Aerodynamics

  • Bimmerworld Front splitter
  • Bimmerworld Rear wing
  • Race louvers (center + side)

Exhaust

  • Bimmerworld 3.5″ race exhaust

Safety

  • Racetech RT4119HRW driver seat
  • Schroth Flexi 2×2 harnesses (driver)
  • Fire suppression system
  • Aerocatch steel hood pins
  • Battery terminal / kill-switch covers
  • ST3 and fire/kill decals

Driver Cooling

  • Chillout Quantum Cooler Pro Series with accessories
  • Chillout system mounting

Electronics & Data

  • AIM MXP dash logger with full sensor suite (brake pressure, AFR, standard TC sensors)
  • CAN wiring for AIM
  • TPMS system with tire sensors
  • Non-subscription lap transponder

Spares & Track Equipment

  • Spare ZF 5-speed transmission
  • GSR Ballast plate set (30 lb base + 25 lb upper)
  • Vorshlag rear tow hooks + tow straps
  • Backup Ferodo DS3.12 rotors and pad inventory
  • Spare Clutchmasters 725 series

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