- Guesstimate on power levels
- More misfire with colder plugs?
- 07-08 N54 injector recall
- N55 PS2 install: Do I have everything?
- Logs check MHD
- MHD Help
- N55 engine overheating
- Need expert help, blowing through plugs, logs included
- E46 M3 LSD into 135i
- N55 MHD Log Check
- N54 *high idle* after new plugs and coils.
- ECU question
- High Pitch Squeaky Noises
- Serpentine belt part #
- N54 Injector Recall Ugrade To Index 12?
- Intake after 130k miles (pics)
- N55 pops and bangs map
- Serpentine belt options
- Is this wastegate rattle?
- What sounds better? Resonator delete vs PE mod
- 135i N54 Pure600 video
- Whistle sound w the jb4
- Slight blue smoke at steady RPM's in sixth gear
- what is these two boxes in engine bay
- Misfiring after removing and replacing charge pipe
- 135i flashing map back to stock with DCAN/INPA
- Cobb to MHD is it worth the switch?
- Exhaust Options
- Swapped Intake Ton of codes??? Help!
- Tial to HKS BOV Adapter?
- N55 serpentine squeal/chatter
- Burnt / Corroded Coils N55 MHD Stage 2+
- Intermittent oil smoke, bad turbos? Probably
- OFHG diy questions
- Cylinder 4 misfire codes. Sputtering, running rich
- Need fueling suggestions for PS2
- Turner Motorsports Single Mass Flywheel Feedback
- ATM Intercoolers - still in business?
- Engine modified and new map... advice?
- Oil in Intercooler/charge pipe ?
- Realistic Expectations with N55
- Misfire Cyl 1
- Misfire Issues with MHD Monitor function....
- What Do You Guys Make Of These Weird Noises
- Ofh
- Custom 3" Quad Tip Exhaust Results
- Timing Corrections - Logs Inside
- 135i N54 ghost misfire on high boost/gear
- 135i auto to manual swap question.
- 135i clutch part number
- Hard shifts 3rd to 4th, trans and DSC malfunction. Engine code P17E8
- Thinking of adding silicone inlets... Anything to watch out for?
- N54 Custom Mid Pipe Thoughts
- Clutch kits
- Blown pipe
- Rear seat delete for one series
- HPFP recommendation? Hesitation after bolt ons
- HKS BOV spins ??
- Cylinder head thermostat housing/hose
- All 135i options do not work no codes!!!!!!!
- Mad Dad Mid-Pipe - Any interest in a group buy?
- Broken vacuum line nipple - options??
- BMS BOV Vacuum Adapter Question
- 135i Fuel Gauge Issues
- AC Delete
- N55 135i blown headgasket?/ motor ***update included***
- Er chargepipe
- CSF cooling products... fitment?
- N54 Started, died, now only cranks
- Info about bmw performance exhaust
- Positioning of resonator to reduce drone?
- New turobos and mods, now black smoke at high RPM WOT
- B58 Swap In Bmw 120i E87
- 135i n54 logging
- Will 2007 335i engine/trans fit in 2008 bmw 135i?
- What to look for in logs?
- N55 error messages, what's the root cause?
- O2 Sensor Heater Fuse Location? HELP!!!!
- 1m upgrading turbos. What else to do while I am down there!
- Faulty Half Engine Light???
- Need a new cylinder head
- Help with some logs
- * Admin remove *
- 135i N55 Boost leak (BOV)
- N55 Speed Tech Stage 3 EFR7670 Kit
- LOG
- Violent shaking upon acceleration, or turning right..?
- v-band hell
- LPFP upgrade fail! Help!
- HELP 550i clutch LUK DMFW doesn't fit.
- n54 throttle closure and boost over target.
- Mystery Device 135i DME
- Yellow brake light
- Vanos Solenoids - Which Brand?
- Help! Engine misfiring - half check engine light
- Wiring Innovate AFR gauge to factory wideband sensor?
- Turbo health question???
- Boostane question
- MMP Contact
- Anyone running mafless on N55?
- Hole in Oil Pan ? New Motor?
- Figuring out possible boost leak with datalog?
- My First BMW - A Build Thread (N55 DCT 135i Build)
- WORLD RECORD: Manual BMW 135i runs 10.3 @ 134mph!
- Custom tune MHD n54
- Oil leak? Makes no sense
- JB4 or NO JB4 ??
- Hiccup in datalog during 3rd gear WOT run
- MHD tune question
- What happened to my tune?
- Vacuum leak?
- Leaking Injector? Logs Attatched
- Where to buy M-Sport steering wheel?
- Relocated coolant tank
- XHP DCT Flash released
- DIY Audi R8 coils
- 135i N55 - Not hitting requested PSI?
- Valvetronic actuator disconnect
- Will a 2011 335i Engine fit my 2011 135i?
- BMW 135i Pure Turbos Pure600 Review
- Vrsf catted downpipe
- Fuel Gauge rising when turning car to "ON"
- Jb4 map 2 or 5?
- M2 Exhaust on E82?
- Rumble and vibration after Wavetrac install
- 2009 135i ate a belt
- oil catch problem
- "Sound Generator" attached to my charge pipe
- Engine Codes
- I have to believe this is the reason for my cylinder 1 misfire.. rust on coil
- VRSF stock location inlets
- n54 2009 135i vanos help please !
- Motor Mount Replacement
- Vrsf gaskets/clamps
- Coding to disable airbag light
- Limp mode at the track
- E85 Set Up
- Datalog shows LPFP sensor pinned at 55.7 psi
- Outlet to hot side intercooler connection
- Manual to Auto Diff Conversion
- Aluminum guibo FUBAR - video!!
- What codes are these?
- Anyone run Tial QR (recirc) on N54?
- 3rd outlet in charge pipe.
- Oil level question.
- Bimmercode on late 2007 n54 135i?
- N55 MEVD1726 - 2A15 Low Voltage Short, Misfires, Failed DME?
- Installed berk street mid pipes and now there’s a slight rattle..
- E82 dual exhaust to quad exhaust??? Is it possible
- Looking for catted downpipe without cel
- Vargas GC Turbo for N55 EWG
- Do 2011 E87 headlights fit 2008 E88 ?
- Slow start when hot
- 128i help
- Hp numbers on 93 octane with various setups?
- What part is this? In front of coolant expansion tank.
- *NEW* Injen X-Pedal Pro Black Now Available!
- Disable BMW Throttle Adaptation?
- Pure Stage 1 N55 install
- removing JB4 chip
- 2013 n55 first mods
- installed berk mid pipes and now i can hear a slight wastegate rattle
- 2011 135i N55 downpipe removal v-band problem
- Oil thermostat bypass question (pros & cons)
- Need help removing Idler pulley!!
- Power randomly cuts out for 1 sec, but comes back on with rail pressure spikes
- Rear diffuser undertray part name / #
- Newly acquired 2011 135i N55 DCT with questions and concerns.
- Rod bearing replacement in my future?
- MHD N54 Low Boost Target / Timing Pulls? Logs Attatched
- 135i clutch pressure problem need help
- Blackline Taillights
- N55 serpentine belt - too short?
- Replacing coolant level sensor
- Flash Options
- VTT stage 2 stock fueling base map
- Car suddenly "overheating" and then not, repeatedly
- AWD N54 Trans Vs RWD
- Phoenix Catless Downpipes? (N54)
- E82 135i N55 - Misfiring :(
- The VTTO valve cover breather to solve PCV Squeal
- MHD Tuning Question
- N55 Stage 2+ tune - reliability?
- 1M replica rear bumper and custom exhaust/muffler
- Coding and map writing software
- Coolant temp and thermostat codes
- White smoke from hood after stopping, burnt rubber/oil smell
- Car won't rev in park or neutral past 3k RPM
- Clutch stop install issues
- Looking to purchase secondary cats and oem downpipes
- Have I gone as far as I can go
- Old JB4 Firmware?
- Oil catch can installed
- Waterpump started turning on after Key-Off, immediately after bleed procedure
- Help me understand power potential!
- Datalog from MHD
- Questions about KB4 + MHD BEF
- Twin turbo or Single turbo for 550whp?
- Bellhousing Inspection Port Plug P/N?
- Water Pump Seepage?
- Mastery of Art & Design N54 & N55 Downpipes ***NEW PRODUCTS***
- Should I get inlets if I am on pump gas only?
- Anyone have a clip of this exhaust?
- Doc Race Bottom Mount!!!
- Cold Weather/Cold Start Leak at Oil Thermostat Delete Plate?
- 1M exhaust??
- OS giken differential
- Please help! Is this rod bearings ?
- n55 Pure800 pwg & ewg beta
- PPK tune?
- PE exhuast
- Installed VRSF catted downpipes and now...
- MHD- Constant Codes + cold start stalling
- 135i N55 Exhaust Reccommendations?
- Car Going to Catch Fire!?
- DCT 2.56 diff, bolted or welded?
- Is there a way to find out of I have a hybrid turbo?
- multiple passenger stage 2 airbag fault
- 3/4" Hose Good for Oil Cooler Use
- Supporting mods ?
- Redline D4, D6 or MT-LV?
- N54 turbo caked with oil, extensive smoke
- 17T hybrids
- 3D Printed Air Scoop Help
- Silicone coolant hoses
- Turbo, etc inspection
- Will a F80/F82 M4 tranny fit in 2011 N55 135i
- Single Turbo Vs pure stage 2 (Drift Car Build)
- N55 / N54 Water Pump Failure (Complete Walkthrough!)
- Help diognosing please!
- 91 fuel on e30 tune
- Car won't start but will crank
- Motor mounts
- Looking to upgrade my Turbos
- Suggestions on quieting n54 exhaust
- Questions about WMI and PI.
- What would cause this code?
- Refurbished injectors?
- 1M MHD & JB4 help needed
- Failed MHD unable to reach DME
- Little sludge on injectors?
- The cat craze
- Luk 03081 repeat 550i/335is clutch kit
- In pursuit of making my car better
- xHP Question/Help
- Suspect Engine Oil Temperature Error
- Clutch type Lsd Advice
- Help! Loss of power. Surge of power. Error code 0029D0
- Limp mode during WOT pull N55 E88
- Think turbo is gone... and now it's upgraded!