4N M4 GT4 Build

  • Sale
  • Regular price $129,000.00

Contact to Order


Up for sale is our 4N GT4 track development car. This F82 M4 is the first in the world to have a truly integrated custom built air shifted Samsonas rwd6 sequential transmission. This car started out as a 2015 M4 and currently has 49,000 miles with a clean title and no accident history. 


4N M4 GT4 parts list please email for more pictures, sale price, and more information! 



Suspension, interior, exterior, safety


Bimmerworld GT-MORE kit

MCS 3 way dampers

SPL front control arms

SPL rear toe arms

Bimmerworld rear inner control arm monoball kit

Fall line rear control arm monoball kit

AP motorsport GT4 front splitter

4N Motorsport GT4 front brake duct cooling adapter kit

OEM BMW dry carbon GT4 canards

Sparco Pro ADV QRT seat

Scroth right side safety net SFI approved 

NASA/ SCCA spec window net SFi approved 

NASA/ SCCA full spec .120 wall seamless roll cage

BMW Motorsport M4 GT4 Front 32mm Wheel Spacers

BMW Motorsport Wheel studs

APR Performance GTC300 wing with custom fabricated trunk support system

Fire Suppression System, Novec 1230, Cable, Discharge Line, 3 Spray Nozzles, 10 lb. Bottle, SFI-approved, Kit

Full carbon fiber GT4 style hood

GT4 hood pin conversion

Sparta pro Evolution front and rear big brake kit. 6 piston calipers

sparta spare brake rotors x4 

custom wrap just completed April 2023 






4N Motorsport built S55 engine 510 miles since install 

MAHLE powerpak pistons

4N Motorsport ported CYL head

Supertech nitride coated intake valves. Single groove locks

Supertech inconel sodium filled exhaust valves. Single groove locks

Carbahn intake and exhaust valve spring kit.

CP Carillo connecting rods

ACL race rod bearings

Pinned crank hub upgrade 

Motiv Reflex plus injection controller with MHD ethanol analyzer flex fuel E85 system 

PR port injection kit 750CC

Twin upgraded low pressure fuel pump

Custom 4N Motorsport anti fuel slosh bucket transfer pump.

Drexler Motorsport differential clutch type diff conversion. 60/70 50/53

Samsonas RWD6 sequential transmission. Custom close ratio gear set.

Tilton transmission electric gear oil cooling pump system

MME Motorsport gear control unit.

MME Motorsport sequential AIR shift kit with high speed solenoid valves and integrated air tank.

Custom built carbon fiber drive shaft one piece with billet T10 style slip yoke

Clutch Masters FX725 twin disk clutch 

Clutch Masters Billet aluminum flywheel 

Tilton 1000 series Hydraulic clutch release bearing 

4N Motorsport custom built .100 aluminum diffuser and under tray.

4N Motorsport single 3.5 CP1 titanium full exhaust system. Exhaust blown diffuser entry.

4N Motorsport S55 GT 8474 single turbo kit factory electronic wastegate control 

MHD tuned with several power level maps available 

4N Motorsport front mount intake kit

M track race parts removable racing steering wheel with custom button layout.

APEX 18x11 ET25 front rims

APEX 18X11 ET44 rear rims