- I think I want it louder
- Cobb or Android Mapping Method?
- Bed plate question
- coolant leak
- Walnut Blasting- my review
- N55 E-tune progress
- ER charge pipe stock DV install question
- car dont go over 130mph jb4
- Feedback on reliability upgrades/improvements
- cheap resonator delete using generic y-pipe?
- BMS N55 catch can no good for e88?
- What is that cool whistling?
- DME Software Version
- New Kohlefaser Carbon Intake on ECS
- N54: CEL on dyno
- Installed JB4, plugged in battery, then sound like pump running by itself
- JB4 Malfunction! HELP
- Fuel pump bucket damage
- N54 Issues and Injectors - what is correct???
- CBL117's Latest Dyno Results - Dinan S2 + Bolt Ons
- Kicked in map 4 JB4 Help
- Steering. Drive a BRZ today.
- new version of alpina b3 TCU flash
- Not meeting boost target because of high IAT?
- n54 cobb ap cylinder 1 timing correction only
- Dyno Results
- Overboosting - 30FE
- Avg. hp
- Anyone have an exhaust clip like this?
- A sad day - no more BMWP SSK for the n54 135i!
- N55 water pump dying...tow it to dealer?
- what are some healthy numbers for FBO and stock turbos?
- Very Weird Issue.
- Help installing injen intake
- Does Wastegate Rattle = New Turbos?
- Leaky Injector? Looking for some confirmation
- Only 16psi? DATA LOGS
- What do you enjoy most about your 1 series?
- Short commute in N54
- Strange check engine light without codes
- How many PSI of boost can the N54 realistically handle?
- Stripped Strut Brace bolt hole HELP
- STETT charge pipe opinions and fitment
- Wastegate rattle and 30FF Code fixed!!!
- Chassis Creak?
- PURE TURBO S1 REVIEW - 460 ft lbs!!!!!
- Low boost / Throttle Closure
- Why doesn't the BMS Billet Shift Rod fit?
- Cutting through the FUD on tuning the N55
- PPK1 & Top Speed
- Sensor Wire. Need help for correct colour
- low oil pressure after BMS Oil catch can install
- "high-flow" drop in filters? better? or same?
- smoke
- JB4 problem.
- Confusion on custom tunes for us n54/n55 135i's
- VRSF dp's finally!
- Bluetooth enabled e85 content analyzer
- noob question about jb4
- BMW Performance kit question
- Stock sound of N55
- F2x type inlet for our N55 E82?
- Question about VRSF 5" Intercooler
- Berk Downpipe Back Race Exhaust
- N54 Modification precedence + FMIC?
- Safe to run e85 without FMIC upgrade?
- N55 owners who want open OBD flashing get in here!!
- Upgraded DCT trans fluid cooler?
- BMW Performance Kit 2 Oil cooler vs Aftermarket
- Where to buy OE BMW Spark Plugs, Link and Prices
- Installing Berk Race Exhaust - Hanger won't reattach
- Switching Back to the Original Exhaust
- Charge pipe install
- 70k Maintenance
- Smoke and Catless Downpipes
- Need help! ppk2 part identification!
- Car nearing 40k, maintenance?
- New vargas turbos stage2 and MMP turbo inlets
- Swap Auto Diff behind MT
- High pitch small squeal sound
- Odd N54 ticking noise after shut down
- Oil in turbo outlet going into intercooler
- New BMS chargepipe installed ..
- Power Mods vs Handling Mods
- Access to Cylinder/Plug #5?
- Loud whistle after bolt-on install
- issues and post clutch install issue
- Does anyone use the BMS Cowl Filters?
- N55 E88 First Mods!
- JB4 there is no full power
- MHD flasher connection issue.
- Knocking Sound
- VANOS bolts
- Massive backfire, going into limp mode. LPFP low reading
- White Smoke
- Hirschmann Connectors for jb4
- High Mileage E85
- How do my spark plugs look to you? (pics)
- Bay Area Tuning
- Remember kids, the smallest part, may be your biggest problem!
- Down pipe wrap?
- Dealer Vacuum Hose Replacement
- Ess vs Cobb tune
- BRAKE and DTC warning lights (please help?)
- What should engine oil look like after 3.5k miles?
- Some immediate issues after upgrading firmware on JB4?
- can i use map 7?
- mhd question with ppk
- Recommended to change spark plugs myself?
- What exhausts do you guys run?
- N54 intercooler on N55? Help
- Do N54 coils get weak over time or completely go out ??
- Can the 1m MUFFLER not exhaust fit on the 135i?
- Backend flash without JB4?
- Radiator fan running on full blast all the time
- What Parameters do PTF require to be logged on the Cobb?
- Misfire, Misfire, Misfire
- Which JB4 setup?
- ECU ground wire
- Does the COBB AP save the PPK1 map?
- JZW Tune's...user experience please?
- M3 subframe swap or ...? please advice
- Wedge Dp fix code 2C32 and 2C6A
- Differential Question
- Modding in MD (inspection safe)
- Berk Exhaust
- 2008 135i A/T HP/Torque Limit
- Engine light
- running avgas?
- Are the Macht Schnell intake scoops still available?
- What Do You Think of This Idea?
- ATM or CP-e FMIC for my build?
- 2009 135i 6MT transmission problem need some help
- LPFP upgrade
- [PSA] JB4 Users, What Is Your WOT AFR?
- What's causing this NOISE?? (Video attached)
- 5 oxygen sensor OBD codes. Help!
- CP/Diverter Valve Question
- Reliable power setup
- JB4 over Cobb
- Rough idle, failed to start once
- common problems around 60k miles
- white smoke problems n54 need opinions!!
- exhaust rattles
- Quad tip 135i exhaust options
- Walnut blasting Ohio
- How restrictive are the secondary cats?
- JB4 map 5 and 7 e40 logs
- Engine light
- Need a used turbo...
- N54 Tune
- Top Speed gearing for Auto 135?
- Electric Cutout Placement
- Just paid on the group buy for EC7's
- 93 Octane
- No Cat on DP CEL when I have Cats?
- Hi forum, I am looking to buy used 2011 135i
- Getting stange codes and dont know what is happening
- Help Installing Tial BOV!
- N54-FBO-Stg2Turbo-Turbo Inlets. Sound Norma?
- Dash Computer Acting Weird
- Does MHD include a DP fix?
- Forced Induction and NA engine size equivalencies: is this science, or fiction?
- Warm start longer crank and misfires
- N54 + JB4 + Backend Flash - WOW
- 08 n54 want to add e85
- DCT transmission leaks - DCT owners please read
- Sluggish turbo response following JB4 BEF?
- Steptronic WOT shifting early
- Exhaust crackles & pops
- DME ZB number from INPA UIF?
- Anyone else using MHD??
- Water pump warranty? My MY2009 135i's just went out.
- Tuning Help Needed: Low RPM cruising high timing corrections (Log Inside)
- N55 midpipe to aftermarket
- 2009 135i 90k miles
- n55 need your help for mods
- Water Pump Failed? Overheat Water, Low Oil Temp.
- Angel eyes
- Turbo
- underneath a stock 135i
- Recalls
- After JB4 install, 30FF. Charge pipe/DV?
- Confused about the HPFP/turbo/wastegate
- Bad Boost Solenoid n54?
- jb4 help
- Misfire hesitation hiccup on vpower only
- Sea foam and intake valve cleaning
- Do your ER Competition Dual Oil Coolers hang LOW?
- N54 wastegate rattle.. mostly one or both turbos?
- Warranty extension
- Taking Car in for CPO. How to remove JB4 fully.
- Berk Race Axle back or Berk street Performance Axle back?
- N55 pulsing, oscillation, or fluctuation of boost
- Big datazap update! Gauges, Playback, Save Layouts!
- Water Pump ?
- N55 54,000km New Turbo
- N54 Exhaust time baby!
- What should I do next from an exhaust perspective?
- Paranoid about noises when accelerating
- 2011 N55 having Strange miss-fires TONS of codes
- Just Installed MFactory LSD
- shattered my chargepipe
- JB4 Switching maps on own
- N55 Stage 2 JB Hybrid Upgrade VTT or BMW N55 PURE Stage 2?
- DME codes 3100 and 2DA0 please help
- wastegate rattle
- Hiss noise
- Nitromethane nitro booster
- Require tune?
- Diagnosing sputters/misfire on a cold start.
- Can I safely drive on a busted vanos solenoid?
- N54 turbo update
- Car updated with VRSF Charge pipe and Cobb Catted Downpipe, retuned @ Cobb Plano
- Any way to bypass torque control on the 6AT 135i?
- My 135i 6MT propshaft is different from realoem, verry strange??!!
- Charge pipe installed - Report and Questions
- Forge Motorsport Turbo Wastegate Actuators
- N55 Midpipe or Berk midpipe for N54 engine??
- Running out of trims - JB4
- N54 Help Plz!
- N55 Stage 1 Questions
- What can we expect from cannibalizing M2 engine?
- What next after Cobb Tune
- WTB: N54 E82 v N55 E82 v N54 E92
- N55 midpipe question?!
- People with an N55 with PPK
- HIGH TEMP
- Burger motorsports #??
- Magnum Force Stage-2 Si Intake System Pro 5r
- Best Place for Plugs / Coil Packs ?
- N55 PPK White Smoke
- HPFP vs. LPFP explained
- Gapping Plug
- 2013 ECU flashes / alternative controllers
- Mishimoto Intercooler Anyone?
- Agency power exhaust or afe
- Error Codes And Almost Limp Mode
- Intercooler flow - stepped or block type
- Coils not "Accepting" Plug
- Berk Race axle back (muffler delete)
- n55 Spark Plug Problem
- Need help fast! JB4
- Need help fast! JB4
- RB EVO 135 goes 10.9 at 133mph!
- First post as N54 135i owner, JB4 question about DP codes
- Spark Plugs Suck in N55
- Spark Plugs to use in a N55 with tune
- Using spark plugs from s55 engine
- Different weird noise at low RPM after MHD Flash Stage 1