- Has anyone added mufflers to the Cobb exhaust?
- Help random no start bsd communicaton fault?
- can bus issues
- Classic idler pulley issue?
- Index 12 Injectors going bad?
- Rough Idle and Misfire: Need Help
- Weird misfire/ stumble
- Need help with codes related to one issue.
- Engine malfunction with no codes
- Wtb: oem n54 downpipes
- N54 continued engine issues need help!
- Cut wires on n54 jb4
- Vrsf catback exhaust
- Turbo to Downpipe gasket
- How many people have experienced cam ledge problems?
- JB4 setting chart
- vrsf street exhaust fitment
- N54 Snapped Turbo-Downpipe V-Band Clamp
- Cracked turbo manifold after downpipe install
- Car broke down again. Confusing codes. Please help
- Diverter valve options
- IAT vs. HP Theory
- High pressure oil cooler lines
- Oscillations and poor mpg
- Coolant & Oil Line Orings - Turbo Install
- 6hp21 TCU swap
- Severe misfire, need help
- BMW 335i Drift issues
- PE mod
- xhp raised torque reduction
- ISO intercooler, downpipes, charge pipe/bof
- Is the IBS removed? 335i 07 n54
- Front Intake Scoops...good for reducing IAT'S or just for looks?
- Pure 600s or RB 2 plus?
- Can anybody identify these downpipes?
- Single turbo first log - overboosting and Hpfp below 10
- Definitive VANOS Solenoid solution for replacement?
- E90 335i overheating
- MHD Stage 1 to 1+ without more bolt ons
- Used injector replacement
- Going rate for used primary catalytic converters?
- downpipe rattle
- No start issue…
- Coolant Loss
- N54 Misfire Issue unsolved
- 30F0 and 30F1 Superknocking Codes
- Help with wheels
- BMW E90 MHD logs. Huge loss of turbo spool and torque.
- New To 335 N54
- 335i long crank, rough idle cold start, misfire cyl 4
- High coolant/IATs (65F outside temp), DataZap included
- NGK one step colder gap
- Rear main seal replacement
- Hitting target boost but LATE??
- Misfiring mayhem - random misfiring issues
- VRSF intercooler replacement hoses?
- Cracked valve cover boost leak?
- Is a 6HP-19 Valve body compatible with 6HP-21 transmission?
- Blown Motor? Connecting rod? Crank?
- Is upgrading 17T TD04 possible?
- 6MT Bushings/Clutch pivot
- 28A2 Vanos Intake
- High rpm
- Odd Engine Sound at Idle
- Rear Differential question
- delete
- BMW E90 MHD logs. Huge loss of turbo spool and torque.
- N54 Confusing Missfire part 25
- Sawing off OEM Inlets
- Can't get ARM 5" FMIC Intercooler installed
- Blow off valve
- Pure Stage 2 Power Estimate - E30
- Suspension and ride height on 335xi
- 335i chinese single turbo manifold and downpipe
- Turbo troubles:(
- N54
- Help reading my spark plugs
- is it worth replacing oil filter housing gasket, oil pan gasket?
- E92 rear Differential, What other rear diffs can we make fit?
- Should I Change Rear Main Seal?
- Lots of 2D58 limp modes in hot weather
- Oil Cooler Upgrade
- Front/Back Surge while coasting
- Index 12 Injectors
- Front Inlet Touching Alternator
- Please look at my logs. N54 MHD
- Put post in the wrong section pls delete
- Diff bracket
- Pilot Bearing Removal with Bread?
- what we all think about our N54
- N54 misfire
- How hot is hot enough
- Custom-tuned and complete power loss when rpm too high
- Looking for R4 (Split Sec) software download - Version 2.0 or newer
- Cold Misfire / No LTFT After DPs, Logs Attatched
- Car feels sluggish not sure if underboost
- Spec Stage 3+ Question,
- E82 midpipe on E91
- Rough 1-2 Shift Manual Transmission
- New valve cover defective??
- HELP! HPFP Failure?
- N54 FBO + tune
- Best Budget Mods for Increased Performance & Reliability/Durability?
- delete
- delete
- delete
- N54 Vanos
- Can’t flash with MHD
- Going from stock DPs to catless DPs
- N54 Single Turbo Fighting misfiring
- 335 detectives I need your help
- Fuel Mixture Code 29e0
- Is this cracked wheel repairable?
- RB two and two plus reviews
- cheap china top mount turbo kit
- N54 Stutter no codes stock tune
- 600 WHP?
- Car leaking, unidentified part.
- Odd jump in RPMs
- Misfire, no codes.
- N54 Missfire only cyl 3
- Dying car at operating Temp
- Aftermarket coils any good
- So I bought a new car and...
- Best fitting N54 chargepipe?
- 4f81 & 4f84 bmw fault code
- What cordless impact wrench do you own?
- Rough idle after walnut blast
- 335i vrsf exhaust cutout
- Help with some error codes before I just go buying parts
- FBO STG 2+ N54 Feels Slow? Logs Attatched
- Exhuast set ups
- HPFP not sending fuel to fuel rail.
- People with Dragys: What kind of times are you knocking out on street tires?
- Transmission gets stuck in gear sometimes
- Need help, 2C9D, replaced both pre-cat 02's
- My MHD Logs safe?
- 335is broken into. Need help finding replacement part
- cat delete
- Lightweight Single mass trans rattle - will thicker oil help?
- What turbos are you running?
- Fluid for ZF 6AT Transmission
- Slow boost buildup? New Pure600's
- Safe timing for 93oct maps
- No codes, low boost, need thoughts
- Throttle pos
- Bank 1 injectors dead?
- NGK 1 step Cold Start Only Misfire
- Pure Stage 1 VS Stock Reliability 450-500whp
- Lean conditions
- Engine light still on after MHD tune
- Engine Making Noise + Misfire code
- Flow gauge for port injection?
- Throttle body vacuum adapter work?
- Octane Booster
- Here is why your valve cover still "leaks" after replacing the N54 valve cover gasket
- Can I run 17t's and 2" inlets with stock tune?
- P3 gauge kit from FCP Euro - no boost sensor?
- Help Needed: MHD Log
- Another cold start misfire
- EKPM3 Plug and Play Upgraded Cooling For Sale
- 2008 535i N54 transmission issues
- JB4 + MHD Backend
- Help Buying N54 2009 BMW
- Bottom Mount Turbo recommendations
- please help me with a crank but no start issue
- Where can I get the rubber grommets and screws for the N54 coil cover?
- Can I run E85? And if so, what ratio should it be?
- Flange sealant.....options?
- mods, please delete
- hi need help engine oil smells like fuel
- Jb4 tune questions (first time)
- N54 Rod Knock
- VRSF OEM location inlets with diverter valves, how
- Decipher this log please, MHD Stage 2+
- Upgraded turbo problems
- N54 Decking
- Faint whine possibly from Turbos
- Front end knock when going into gear
- Good custom Exhaust? Catless or Catted?
- E93 335i over voltage, possible battery damage?
- Personalized license plate options, which do you prefer?
- Need to upgrade from 335is clutch?
- Reputable BMW shops near Portland Oregon
- 08 n54 on pure stage 2 dd. Extreme wastegate rattle since install
- Stumbling at idle when warm
- Forced radiator replacement, OEM or aftermarket?
- Stock N54 + MHD Stage 1 Concerns
- Replacing turbos. What else to considered replacing
- Can anyone explain MHD Mboost tome?
- N54 e90 and exhaust options
- Shifter options
- passenger airbag malfuntion after head unit intall
- MHD Stage 2+ (Error Code: 29F2) (Shadow Codes: 2FCA / 2FDA)
- All Aluminum Pierburg??
- 1.75” vs 2” Outlets Question / VRSF vs VTT
- Botched turbo install… any ideas?
- Car won't start need advice!
- 335 Electrical problems
- N54 Smoke Problem
- N55 tuning mods
- Auto or Manual MHD tune
- Aluminum Outlets Install Help
- What turbos should i go?
- Valve Covers
- Lambda Bank 1 and 2 question
- Lightweight SMFW: Is it worth it?
- N54 335i Top speed Governer/Limiter
- SpeedTech N54 Overboosting
- Guess I need new turbos grrr. May as well get td04s
- Muffler delete or PE mod ?
- n54 e90, dual straight piped. Can you fit Resonator in the place of the mufflers?
- Rear turbo coolant leak question N54
- 2009 335i - Spark Plug Analysis Needed
- Best “Budget” Turbo’s for Wastegate reliability
- 29F5 and 29F4
- Turbosmart Plumb-back DV thoughts?
- Is it important for hpfp to use port injection?
- E92 Vishnu ProCede V5 software
- 29E0 & 29E1 Mixture Control Faults
- Waste gate adjustment
- 2CF7 code
- Data log Review
- Heater core coolant hose clip
- n54 335i p0335 and dsc fault
- my vanos solenoid bad or sensor?
- N54 Turbo Siren
- N54 surging around 3000rpm constant throttle input
- MHD logs Stage 1
- Oxygen sensor codes 2c28..and now 2c26
- Quad Exhaust Idea
- Lots of Error Codes / Very Rough Idle (29D0-2, 29F1, 30BB, etc..)
- Daily driven single turbo
- Oil leaking onto hot exhaust + more
- Paint brake calipers
- Diagnostic for bearing ledges or cam adjusters
- Really bad hesitation starting @ 2k RPM's
- Which aftermarket trans mounts?
- 800 WHP E92 N54 Single Turbo review
- "G-Plus" Oil Cooler Bites the Dust
- Another what is this noise ? (Help)
- 335i Electrical problem!!!
- MT oil capacity?
- Which JB4 Map to go for?
- N54 Triumph TR6 Swap
- JB4 and new errors
- E93 n54 problems
- HPFP help, where to buy?
- HELP MHD FLASH problem
- All metal water pump?