Disclaimer: Many things written below I wrote over a decade ago. Many mods have been changed out several times, as new things on the platform have been discovered. E.g. eBay headers are installed at one point... something would never do now. So... consider this a coming of age journal as much as anything else :P
Going to start off with a non comprehensive (because I've forgotten way too many things that I did) mod list that I'll try to keep reasonably up to date...
Engine:
OEM ( Die Wethje) CSL Airbox
Schrick 280/272 cams
TMS pullies
Dr VANOS cryo treated exhaust hub
Beisan systems lifetime VANOS sealing plate o-rings
Beisan systems lifetime VANOS solenoid
Beisan oil pump disk
Beisan VANOS rattle repair kit
Beisan VANOS seals
Beisan timing chain tensioner guide
TurboToy (modified ARP) cam bolts
updated BMW high pressure vanos oil line
lifetime CPV o-ring
Exhaust:
SuperSprint V1 stepped headers (swaintech coated)
SuperSprint HJS catted V1 Section 1
SuperSprint resonated twin tube section 2
SuperSprint Street muffler
Engine Management:
CSL Engine Management
MCCHIP-DKR Dyno tune
OE CSL IAT
OE CSL Map rail/sensor
Aux/clutched fan replaced with ecu controlled (using Z4M values) spal fan
SMG shift lights turned on
post cat 02s turned down but left on (ready)
secondary air pump sensor disabled
cold start sequence disabled
non sport throttle mapping
sport button disabled for future alternate use
sport mode memory enabled
EGT tweaked for HJS Cats' allowable max temps
Top speed limiter removed
Dyno limiter removed
CSL warmup light values
Suspension:
Fat Cat Motorsports Stage 3 Coilovers
Springs: 375 FL, 350 FR, 700 RL, 650 RR (equal frequencies left/right, 1.97hz front, 2.10hz rear, 75% front roll couple with sway in middle of adjustment range)
Corner balanced and preload dialed out, with equal ride heights left/right with me in the drivers seat
Ground control street camber plates
Ground control street RSMs
Ground control Front sway/bushings/brackets/end links
CSL Rear sway/bushings/brackets, with home made adjustable end link
Sealed monoball RTABs
Bimmerworld sealed monoball rear adjustable camber arms
CSL Kingpins
Steering
ZHP/yellow tag steering rack
25% assist reduction by shimming pressure regulator
CHF-11 conversion
Alcantara steering wheel
Brakes:
817.3 DSC unit (CSL)
Porsche 996 calipers
CSL/ZCP/Z4M rotors (FCP)
stainless lines
OE Porsche Street pads (FCP)
track pads (FCP)
Castrol SRF (FCP)
Hard Motorsport Brake Ducts
Hard motorsport backing plates
Body:
Evolve CF roof
Vorsteiner CSL trunk
Fucy CSL diffuser
Gunmetal grills/gills
Depo smoked front corner lights
35% tint (3M)
vinyl M stripes on trunk badge (stock colors, less prone to fading)
modern BMW wheel center caps
shark fin removed
OEM driver’s side keyhole cover (to deter thieves)
Wheels:
18" RAC RG-63s in gunmetal (street)
17" Apex ARC-8s (track)
TMS 75mm studs
Lights:
TFX projectors
55w bulbs/ballasts/ignitors in 4300k
85w halogen highs, programmed to come on with the xenon highs
Outer brake light ring enabled for normal braking
Brake lights programmed to strobe under hard stops
e9X LED license plate lights
Interior:
Cobra Nogaros in Imola Red leather, with factory heating pads install and adjustable lumbar
Brey Krause Mounts on factory e46 manual sliders
Brey Krause Rear deck harness mounts
Alcantara wrapped header liner
Alcantara wrapped pillars
Alcantara wrapped rear deck
Alcantara wrapped steering wheel
imola leather wrapped center console
imola leather wrapped arm rest
imola leather wrapped ebrake book
Z8 ebrake handle
M3 oval interior mirror retrofit
Stereo:
100% of factory stereo, mounting brackets, and wiring harness deleted
Avin Avant 4 with speakers plugged in directly to unit
Wireless CarPlay module
Chassis:
Vincebar, epoxy/rivet under floor version
TMS subframe reinforcement kit with extra reinforcements
BMW structural foam in subframe cavity
updated BMW diff mount bolts
CMP subframe raising solid mounts
front strut tower inserts to remove slots
Slonik chassis reenforcement plate
Misc:
Wavetrac differential
Brail GU1R lithium ion battery (6 lbs), mounted in the engine bay to eliminate 6 lb battery cable
Entire factory stereo (inc wiring harness, mounts, etc) removed
Light weight (2 speaker) stereo powered by head unit installed
Avin 9" touch screen head unit install (wireless CarPlay 99% of the time)
CSL Cabin air filter housing
Auto Solutions SSK
RE Transmission mounts
Hella Horns
CDV delete
VAG grocery bag hooks
CSL Aux coolant pump
Washer tank swapped for e39 high intensity washer tank
e39 washer stalk for extra button to toggle M Track Mode while preserving on quick DSC off and steering wheel controls
Coding (non comprehensive highlights):
CSL oil level display (in cluster) enabled
M track mode enabled
Strobing shift lights
Going to start off with a non comprehensive (because I've forgotten way too many things that I did) mod list that I'll try to keep reasonably up to date...
Engine:
OEM ( Die Wethje) CSL Airbox
Schrick 280/272 cams
TMS pullies
Dr VANOS cryo treated exhaust hub
Beisan systems lifetime VANOS sealing plate o-rings
Beisan systems lifetime VANOS solenoid
Beisan oil pump disk
Beisan VANOS rattle repair kit
Beisan VANOS seals
Beisan timing chain tensioner guide
TurboToy (modified ARP) cam bolts
updated BMW high pressure vanos oil line
lifetime CPV o-ring
Exhaust:
SuperSprint V1 stepped headers (swaintech coated)
SuperSprint HJS catted V1 Section 1
SuperSprint resonated twin tube section 2
SuperSprint Street muffler
Engine Management:
CSL Engine Management
MCCHIP-DKR Dyno tune
OE CSL IAT
OE CSL Map rail/sensor
Aux/clutched fan replaced with ecu controlled (using Z4M values) spal fan
SMG shift lights turned on
post cat 02s turned down but left on (ready)
secondary air pump sensor disabled
cold start sequence disabled
non sport throttle mapping
sport button disabled for future alternate use
sport mode memory enabled
EGT tweaked for HJS Cats' allowable max temps
Top speed limiter removed
Dyno limiter removed
CSL warmup light values
Suspension:
Fat Cat Motorsports Stage 3 Coilovers
Springs: 375 FL, 350 FR, 700 RL, 650 RR (equal frequencies left/right, 1.97hz front, 2.10hz rear, 75% front roll couple with sway in middle of adjustment range)
Corner balanced and preload dialed out, with equal ride heights left/right with me in the drivers seat
Ground control street camber plates
Ground control street RSMs
Ground control Front sway/bushings/brackets/end links
CSL Rear sway/bushings/brackets, with home made adjustable end link
Sealed monoball RTABs
Bimmerworld sealed monoball rear adjustable camber arms
CSL Kingpins
Steering
ZHP/yellow tag steering rack
25% assist reduction by shimming pressure regulator
CHF-11 conversion
Alcantara steering wheel
Brakes:
817.3 DSC unit (CSL)
Porsche 996 calipers
CSL/ZCP/Z4M rotors (FCP)
stainless lines
OE Porsche Street pads (FCP)
track pads (FCP)
Castrol SRF (FCP)
Hard Motorsport Brake Ducts
Hard motorsport backing plates
Body:
Evolve CF roof
Vorsteiner CSL trunk
Fucy CSL diffuser
Gunmetal grills/gills
Depo smoked front corner lights
35% tint (3M)
vinyl M stripes on trunk badge (stock colors, less prone to fading)
modern BMW wheel center caps
shark fin removed
OEM driver’s side keyhole cover (to deter thieves)
Wheels:
18" RAC RG-63s in gunmetal (street)
17" Apex ARC-8s (track)
TMS 75mm studs
Lights:
TFX projectors
55w bulbs/ballasts/ignitors in 4300k
85w halogen highs, programmed to come on with the xenon highs
Outer brake light ring enabled for normal braking
Brake lights programmed to strobe under hard stops
e9X LED license plate lights
Interior:
Cobra Nogaros in Imola Red leather, with factory heating pads install and adjustable lumbar
Brey Krause Mounts on factory e46 manual sliders
Brey Krause Rear deck harness mounts
Alcantara wrapped header liner
Alcantara wrapped pillars
Alcantara wrapped rear deck
Alcantara wrapped steering wheel
imola leather wrapped center console
imola leather wrapped arm rest
imola leather wrapped ebrake book
Z8 ebrake handle
M3 oval interior mirror retrofit
Stereo:
100% of factory stereo, mounting brackets, and wiring harness deleted
Avin Avant 4 with speakers plugged in directly to unit
Wireless CarPlay module
Chassis:
Vincebar, epoxy/rivet under floor version
TMS subframe reinforcement kit with extra reinforcements
BMW structural foam in subframe cavity
updated BMW diff mount bolts
CMP subframe raising solid mounts
front strut tower inserts to remove slots
Slonik chassis reenforcement plate
Misc:
Wavetrac differential
Brail GU1R lithium ion battery (6 lbs), mounted in the engine bay to eliminate 6 lb battery cable
Entire factory stereo (inc wiring harness, mounts, etc) removed
Light weight (2 speaker) stereo powered by head unit installed
Avin 9" touch screen head unit install (wireless CarPlay 99% of the time)
CSL Cabin air filter housing
Auto Solutions SSK
RE Transmission mounts
Hella Horns
CDV delete
VAG grocery bag hooks
CSL Aux coolant pump
Washer tank swapped for e39 high intensity washer tank
e39 washer stalk for extra button to toggle M Track Mode while preserving on quick DSC off and steering wheel controls
Coding (non comprehensive highlights):
CSL oil level display (in cluster) enabled
M track mode enabled
Strobing shift lights
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