- CEL/"Engine malfunction" after JB4 Install
- likelihood of LPFP failing?
- Please delete this post
- More MHD questions: JB+, Wastegate Raffle Fix
- [Help]Looking At Port Injection Kits
- Catless Downpipes no tune?
- ER FMIC shroud worth it?
- Map sensor
- Long start + hpfp codes
- injector seal tool?
- O2 sensor alternative?
- Lots of timing correction
- injection valve cylinder 3
- '08 335, where to begin?? (Cat issues)
- How can I get check engine light ON
- Help Understanding Boost Parameters - Overboost Indication?
- Top end oil leak...Anyone have an idea?
- panel filter
- Spec Steel or Aluminum flywheel
- 335i missfire/knocking
- Can a 2008 335xi with catless downpipes pass Phoenix emissions?
- Understanding Codes
- Need help with charge pipe pypass tube removal
- Is the BMS Charge pipe good?
- Weird O2 issue? 23C2 & 2C6C ?
- do I have a leak in my turbo vacuum lines?
- Motul 300V vs Redline oil
- Need help
- 335i misfires, or HPFP? no CEL
- 335i clutch and flywheel kit
- 335i Tune
- No Spark NEED HELP !! N54 motor
- trouble with coolant relocation
- Engine Malfunction
- 2007 335i turbo seals gone? Need help
- lossing alignment mark between two part driveshaft
- odd turbo noise after inlets
- Need special tools for Fuel Injectors from FCP Euro?
- White smoke on hard acceleration
- JB4 Interface Connection Problem for Windows Computer
- Weld on Exhaust Tips for E90 N54
- Type 203 wheel centre caps
- Surprised!
- Anyone using Redline 10w40?
- P1931 code
- Correct Setup for Synapse BOV?
- MoCool procedure
- Yellow cog light
- Will catted downpipes make the car louder?
- Exhaust shield loose
- New to....don't shoot...mods?
- (HELP)Extended Studs for Single Turbo Part Number?
- Battery charger for coding and flashing. 2amp enough?
- E54 Cobb Protune
- BMW Performance Power Kit N54 version question for Owners
- N54 Wastegate flap
- No boost, wastegates open! Please help
- Radiator Fan running full speed
- 335i 2C6C code Post cat O2 sensor DIY ?
- Help with watergate rattle problem
- jpworkz top mount custom intake plenum,e50,pi logs
- Going to full e-85 from 93. Questions?
- Help choosing turbos
- Crossmember Bolt underneath is hanging,cant tighten
- I need to see if my injectors where coded correctly. Any way?
- Bmw 335i E9x Tuning Guide
- hexon rr600 turbos lasted 800 miles before they blew up My story
- Need help. Single turbo
- N54 misfires, need help, MHD logs attached.
- Do I need new injectors?
- VRSF Chargepipe help!!!
- 6/2017 - N54 Aftermarket "Guide"
- JB+ vs. Split Second Turbo Tuner
- N54 Carbon deposit Removal! Better method than carbon blasting?
- How much HP to be gained from a lower temperature and less humidity?
- Surge in power delivery
- Stock oil cooler leaking (not housing gasket), anyone else ever have this? Options?
- MHD tune
- How accurate is "torque actual value nm"
- Help me join the club!! n54
- On the fly golf tee mod
- HKS Bov blowing off under acceleration.
- VTT Power Packages: VTT600 & VTT700
- best HPFP
- Dual Walbro 450's: Ultimate Dual Setup?
- When did you get your intake valves cleaned?
- Misfire at WOT
- Question with 3" VRSF downpipes install
- What's P/N for tmap ORing in charge pipe
- Recirculated Wastegates
- Massive Oil Leak
- JB4 Issue, no more boost?
- 335i e92 knocking/clunking sound whilst driving
- Steering wheel vibrates at 100km
- Will a bad ambient air sensor cause performance issues?
- Changing brake pads, need help getting them back on
- VRSF Intercooler charge pipe orientation
- Heat shielding ST N54
- E60 MHD 16psi?
- Another weird sound. Tap tap tap. Transmission?
- VTT GC lites doing work: 11.19@130mph!
- Pilot bearing press for input shaft
- 1 step colder plugs for N54
- Scary sound n54 with revs
- N54 Swap
- injector module?
- CTS Turbo 7" intercooler Pics and thoughts on install
- Need DSC Troubleshooting help
- 2007 335i turbo compatibility
- Inlets and Outlets worth it on stock turbos + pump?
- Surging issues, help would be appreciated!
- DI meth w/ injectors and controller
- Every N54 owner upgrade vaccum lines!
- Boost Solenoid/Pressure Converter
- N54 MHD Extremely lean
- Engine Misfire
- N54 Upgraded Aluminum Expansion Tank
- Coolant temps too low?
- N54, which FMIC to help with low end spool?
- Bench testing a low pressure fuel sensor
- Stage 2+ VTT + MHD & JB4
- Is this compressor surge happening? video of my car
- Has anyone done an oil cooler retrofit?
- Misfire in 6, already changed injector, plug, coil, reset, etc. Log attached
- Alpina Flash Possible or not even?! #ExpertsPlz
- [Help]On DME box 12v switched power
- Ceramic coated my Apex wheels with Cquartz UK
- Does my engine have forged internals?
- jb4 Meth - menu 4/4 or 4/2?
- SES light, reduced boost and vibration...what is it?
- HKS SSQV BOV Install Question
- HKS SSQV BOV Install Question
- Quick question
- Coolant Temp w/ Torque app and JB4
- Help! Can't find code meanings
- 07 335i electrical short please help
- e92 (RWD) snow performance question
- YOUTUBE vid of stock exhaust with muffler delete. C7 Corvette Tips
- How much time to do O2 sensors
- Upgraded axles
- Blown rear turbo? No smoke
- Wastegate Rattle Avoidance
- Long term usefulness of silicone inlets?
- Er charge pipe fitment help!
- Help with Mac
- Issues after installing my single turbo swap
- Car rolls back in 2nd gear of Manual mode?
- Is 165F IAT normal?
- CP / BOV Questions
- Code P0171 and Idle Issues
- JB4 newb, a few questions
- 115K Miles Later ?. What's Next?
- ZF6 Transmission fluid temps
- Cleaning Valves
- Missed part/sensor
- 2008 335i TCU module/ alpina compatible
- Boost and temp/waterpump issue?
- Inlets at 86k miles?
- E60 mix, stock lpfp?
- Should I service my 6AT?
- Octane booster?
- Which vanos solenoid to replace?
- Review my log?
- rear main seal or oil pan gasket?
- Alpine flash vs xhp flash
- Can someone with the Bentley manual please see if it has...
- Stumbling or hesitation at low rpm? Try this.
- What are some stsble mod for power?
- Help from All Methanol Users
- High pitch whistle/whine, no power only symptom
- VRSF Intercooler e60 fit
- E90 LCI N54 won't start after HPFP install
- Rate on a turbo rebuild?
- rear main seal leak
- Cobb Stage 1 Aggr. Logs - Expert Opinion
- Who has changed out their alternator/alternator pulley on 335i?
- UUC SSK or BMW Performance SSK
- Dual Walbro 450 Question
- Injectors not available on Bmwpartswarehouse
- Jpworkz kit
- On3 single build journal (WAS 55mm now Precision 6266 BB!)
- High Idle After Changing Spark Plugs
- P29F2 High-Pressure fuel system Error code
- Misfire same cylinder changed everything
- Oem Location inlets vs Relocated
- Boost Delta; How much is too much?
- Where can i download MHD backend map pack?
- UUC DSSR for 335is, Does it fit ?
- 2nd gear roll problem
- o2 sensor part number??
- UPDATED (07/16): Even MORE Awful 30FF Diagnosing. Need help
- VTT N54 Crank Bolt Capture
- Oil mist on engine cover around oil cap.
- MMP Stage 3 Turbos Install
- 1 Pull, 2 Videos
- Bad Gas Mileage After Maintenance
- Anyone have experience rebuilding/refreshing a N54?
- Interesting limited slip diff
- N54 mod options?
- Mis-firing when warm
- Having trouble finding rear O2 sensor bung exttensions
- Wastegate Rattle Fix - Step by Step
- Boost oscillation
- Do I have a waterpump failure??
- Jb4 menu 11 issues - have you had this issue?
- Long Crank
- Long crank, misfires, gas smell, rough idle, dies
- Has anyone been in contact with JPWorkz lately?
- JB4 Boost By RPM Question
- how bad is launch control for a 335is
- What you need for Meth?
- clicking noise from driveshaft area
- Need help
- Smoke coming from engine
- atm IC arrived today - looks good - installed - logs in last page
- 86k, at trans slipping?
- Downpipes, JB4, then Cobb, fuel pressure sensor issue?
- VRSF Review: IC - Downpipes - Intake - Exhaust
- 335i thinks it's in neutral
- car running like crap after walnut blasting
- Power Expectations from tune and down pipe
- wastegate rattle question (procede users?)
- How to diagnose leaking injectors?
- Possible HPFP?
- Smoke under deceleration
- HELP: need to find out what this wire goes too
- Shop charged me how much for upgrades??
- Please help - forge valves -- fixed
- Anyone keeps a file with G5 NON-ISO firmware?
- Anyone 200k+ miles on their original engine
- How can I make a RWD JPWorks ST Kit fit my Xi
- How long for engine to cool to change plug
- PCV Valve replacement problem
- What else should i replace/upgrade?
- Docracing Kit for XI
- N54 Cam Ledge Alignment
- Code 2D33 after N20tmap sensor and BMS harness
- Official VTT Stage 2/2+ Release Thread
- JB4 Firmware Update Problem
- Fitted Berk race axelback- car "feels" slower.
- Max safe boost on Vargas Stage 2+?
- Mystery Misfire
- Pure Stage 2 Hi flow Turbos upgrade or Motiv Single Turbo upgrade?🤔
- E85 in trunk.
- BQ Tuning N54 Intake Conversion Build Prelude
- Safest route for E85?
- Another HP gains question. And advice?
- torque loss after replacing lpfp
- Ticking rubbing noise when fan running
- Please help me with a misfire *30BA*