Hi thought id pop over and say hi, I dont own a Z4 but it is S54 powered 
Aaron
Engine/drivetrain
Csl cams
Custom Geoff Steel CSL Airbox
MS54HP DME
Remapped with custom map
ACS quick shift
LSD 4.10
ACS Backbox with resonator box removed
Milltek 100 cell cats
Single mass lightened flywheel
Paddle clutch
CDV delete
Braided clutch hose
Lightened Alternator,PAS,Water pump pulleys
Viscous delete
Currently 387bhp @ flywheel
Suspension:
AC SCHNITZER Race coilovers
Fully Polybushed with the new Powerflex RACE black range
Eibach Anti roll bars (adjustable)
Track custom HUNTER alignment by us
Subframe mounts reinforced using our own fabricated kit
Custom top mounts
Solid rear top mounts
Ultra Racing rear brace
AC Schnitzer front brace
Brakes:
380mm K Sport 8 pot fronts
360mm K Sport 6 pot rears
Pagid RS29 Pads
ATE superblue fluid
Braided hoses
Exterior:
Smoked DEPOs
Dechromed kidney & wing grilles
ACS diffuser custom painted
ACS Boot spoiler custom painted
Full wrap
Race Preg Carbon fibre bonnet
Wheels/tyres:
Now : BBS E88 3 piece forged alloy
Size:
Front - 18x9.5J
Rear - 18x11J
Offset:
Front - ET+41
Rear - ET+28
Weight:
Front - 9.75 Kg
Rear - 9.75 Kg
Tyres:
Front - 265/18/35 Michelin Pilot Sport Cup
Rear - 285/18/30 Michelin Pilot Sport Cup
Wheel stud kit
Interior:
Stripped & weightloss
ACS carbon pack: dash inserts
Real carbon seat backs
ACS door sills carbon
ACS gear knob
ACS handbrake lever
ACS pedals inc dead pedal
Retrimmed alcantara steering wheel tri colour stitching and yellow centre band
Recaro SPGs
Custom front and rear carbon fibre door cards
___
Todo over winter
More weight loss
Roll cage fitting
Flock dashboard
Carbon fibre front bumper
nitron R3 coil overs
standalone management
Aaron
Engine/drivetrain
Csl cams
Custom Geoff Steel CSL Airbox
MS54HP DME
Remapped with custom map
ACS quick shift
LSD 4.10
ACS Backbox with resonator box removed
Milltek 100 cell cats
Single mass lightened flywheel
Paddle clutch
CDV delete
Braided clutch hose
Lightened Alternator,PAS,Water pump pulleys
Viscous delete
Currently 387bhp @ flywheel
Suspension:
AC SCHNITZER Race coilovers
Fully Polybushed with the new Powerflex RACE black range
Eibach Anti roll bars (adjustable)
Track custom HUNTER alignment by us
Subframe mounts reinforced using our own fabricated kit
Custom top mounts
Solid rear top mounts
Ultra Racing rear brace
AC Schnitzer front brace
Brakes:
380mm K Sport 8 pot fronts
360mm K Sport 6 pot rears
Pagid RS29 Pads
ATE superblue fluid
Braided hoses
Exterior:
Smoked DEPOs
Dechromed kidney & wing grilles
ACS diffuser custom painted
ACS Boot spoiler custom painted
Full wrap
Race Preg Carbon fibre bonnet
Wheels/tyres:
Now : BBS E88 3 piece forged alloy
Size:
Front - 18x9.5J
Rear - 18x11J
Offset:
Front - ET+41
Rear - ET+28
Weight:
Front - 9.75 Kg
Rear - 9.75 Kg
Tyres:
Front - 265/18/35 Michelin Pilot Sport Cup
Rear - 285/18/30 Michelin Pilot Sport Cup
Wheel stud kit
Interior:
Stripped & weightloss
ACS carbon pack: dash inserts
Real carbon seat backs
ACS door sills carbon
ACS gear knob
ACS handbrake lever
ACS pedals inc dead pedal
Retrimmed alcantara steering wheel tri colour stitching and yellow centre band
Recaro SPGs
Custom front and rear carbon fibre door cards
___
Todo over winter
More weight loss
Roll cage fitting
Flock dashboard
Carbon fibre front bumper
nitron R3 coil overs
standalone management