- WTB: JB4 (either gen)
- JB4 for sell $350 + shipping cost
- Stolen Married Accesport
- E85 and codes you may have run into.
- Down pipe Being installed
- Loss of power
- golf tee mod help
- Firmware on JB4
- jb4 map 2 with only DCI
- Do the Michelin Pilot Super Sports hook up better than the OEM Runflats?
- Dealer service issue
- need come help with a code
- Downpipes question
- AFR Imbalance (Bank 1/2) - Bad Injector? Logs Attached
- 100% e85 cold starts
- Cold start long crank - ECU tune issue?
- No aftermarket exhaust available for E93????
- Merry Christmas Everybody!!
- PPK water cooler as additional oil cooler?
- Exhaust question ! RPi GTM Race Exhaust
- LPFP Tech info
- Ok to let dealer read key with Cobb installed?
- downpipes dilemma
- How are N54 engines in Brazil coping with 20% ethanol?
- JB4 at Altitude
- LSD Install in San Fernando Valley, CA
- Vargas Turbo Stage 2 / 3 update
- ETS 5 vs VRSF: FMIC
- Need Torque Specs for ER Oil Cooler Kit
- Will a RPI GTM Race Exhaust fit a 335i
- Air intake , what to do....
- Where can I buy 1 floor mat?
- when I use procede,I get 13mpg.
- '07 E90 clutch issue...did search...nada
- When I runing INPA MSD80,I get more codes.help
- $400 for DP install on XI
- Starting to hate my car
- Oil Temp Drops / Fan Overworking / SES Light
- Awesome mirror stickers my wife got me for X-Mas
- Quick question JB4 and OBD port related.
- jb4 question
- Help trouble shoot misfire
- Help! Car is buzzing loudly during Cobb AP install!
- Oil consumption... Reason for concern?
- M3 Rear Subframe bushing questions
- new DME= quite exhaust
- Metal Clashing sound with AR DP on Cold Start
- Help,my car lost DS mode.
- Shifting to 2nd My solution
- JB4 and 335i Help
- Intermittent Oil burning smell/Smoke with new turbos
- What seals/gaskets did you replace with wavetrac install?
- how can i tell if i bout a jb4 not jb3
- Broken Radiator Drain Plug
- BMW Performance exhaust
- Chipping a lease
- Cobb Stage 1+FMIC on ACN 91-octane?
- ar catch can help
- Jb4 rattle fix
- Car wont crank, accessories work, insrument cluster doesnt turn on except air bag
- Help! DME Power Wire Connector Snapped!
- What Cobb Stage 1 aggressive map?
- Transmission Problem?
- 335i no DS mode diy
- Cobb times
- bov wont release pressure at high rpms??
- No boost and no codes?
- AAA Recommends against using E15
- Downpipe Install Advice
- 335is ? SSK ?
- Exact difference btw JB3 and J 4??
- Help with 29CC code
- Injectors on the way out? is it safe to get tuned still?
- How many have boost gauge?
- JB4 Steering Controls Not Coming Up
- Is there a way to fully turn off traction control
- oil leak valve cover gasket?
- Cobb Pro Tune vs PTF E-tune
- Passenger motor mount change
- In the Market For An Intercooler.....
- JB4 + Cobb Has anyone tried it?
- o2 problem
- HELP WITH ER Charge pipe/Synapse BOV
- Bank 2 running too lean: p0174. Only mod is catback exhaust
- Heater Fan Problem
- Cobb loss of power at high RPM's
- Need Help! Downpipe-midpipe studs broke; misfires; hiccups/stutting...Suggestions?
- code:29F4 29F5 clear
- White Smoke From Exhaust = Bad Turbo Seal?
- To those that have installed the Injen intake...
- Radiator fan - say it ain't so
- jb4 iso
- Which way to install clutch release bearing?
- Stroke the N54 motor?
- 335i noise when steering right (VIDEO INSIDE)
- Just Bought Cobb - Great Service from XTR Performance!
- Need Help... Vac Tank and Hose
- backfireing and Spitting Flames! No fuel? Limp mode.
- Best intake with most gains for 335is
- N54 Head flanges and oil feed adaptors
- Stutter after BMS dci install
- Red Coolant Light+Now power=?. currently stranded :(
- I need input on people using JB4 and a COBB
- Wastegate rattle issue... any ideas?
- Anyone wondering what inside a stock muffler looks like? (pics inside)
- oil filter housing gasket????
- Aftermarket FMIC & Gold Warranty?
- differential Lockdown came in!
- intercooler question
- Redline or Royal Purple?
- 335is exhaust - enhancement questions.
- Custom tuners with Cobb
- how to tell if PROcede Rev 2.5 is vin locked?
- BMW said it is a Timing Issue?
- Most sophisticated exhaust?
- WARNING: Replacing turbos under warranty.
- Blown turbo seal?
- A question regarding tuned cars running at altitude.
- What to do after first installing JB4?
- Advice on long cranks post warranty
- Why is this intercooler so much cheaper?
- Upgrade charge pipe?
- Trunk Meth Mounting Question
- Just installed Cobb AP - only hitting 6 psi with FBO - 2 codes
- 380wph evo vs my car
- Cobb won't do the 0-60 or the 1/4
- JB4 install
- AWD Turbo installment contemplation! Need help
- AR downpipes fitment issues?
- N54 /Borg Warner s375 Fitment ?
- Spark Plug Swap to NGK 5992
- Upgrade internals in stock turbos?
- dct with jb4
- review on downpipes
- Downpipes & "noise"
- My road to where i am now.
- 02 sensors - 17098
- FBO/93 Octane Dyno Video/Graphs/Logs. Advice Welcome!
- Eisenmann Race with and without Catless DP's
- Perspective 335i Owner - Burger Tuning Build
- Los Angeles performance shops?
- Track Results - Unfinished Cobb PTF E45 Map
- e85 vs meth
- Dealer service caused misfire?
- 335xi Turbo Upgrades
- Multiple Cylinder Misfire
- Friend got Turbo's replaced under recall but very questionable work....
- New exhaust tips and new find!
- e93 335i vs Supra :)
- If I want install a M3 Selector...
- Meth trunk tank question
- Procede Vinlock
- tran fluid cooler
- Quick Stage 2 Update
- Heat Soak....what are the signs/symptoms?
- Error Codes
- BMS DP FIX: Leave it on...?
- Front Facing T4 TS Project
- Downpipe fitment issue (v-clamp won't close)
- Code 2e81& 2e82
- Do we really need to use BMS RS232/USB cable?
- GREAT misfiring!!!Help anyone....
- Power reduction mode
- Need some Procede V5 Help for 335is DCT
- 335IS muffler on 335xi?
- Help! Excessive Tapping Noise and codes!
- Dct transmission replacement
- Weird noise when steering after trunk meth install
- JB4 psi variations...
- AA exhaust tips or Quad?
- Pulling codes and logging data
- HELP: tune question
- Transmission Problem Help
- paint shop recommendation in US near Vancouver border
- 335i Automatic Transmission fluid change post your experience
- RPM Increase while shifting gears at higher speeds
- do you guys have n54 problems?
- Surging with tune in 2nd gear but not when on map 0
- Cobb AP not listing maps
- VRSF 3" downpipes review
- Gutted stock DPs
- Transmission gone, vid inside. Ideas?
- Flanges and DIY turbo fabrication parts update
- Any actual dyno proof of intakes for the N54?
- Replacing Stock Mufflers with Magnaflow Mufflers. Big Change?
- BMW DP fix back to Stock
- Modded OEM Exhaust
- Is it possible for N54 to sound like this??
- Running 100 octane on a road trip ?
- Quick Question
- E90 Catless DP + Exhaust????
- VSRF vs AP downpipes
- P0171, P29E0 with AR Catted DP
- Help Reading Jb4 On Dash
- BOV
- Turbo Rebuild?
- Engine damage due to separated charge pipe?
- New gauge in town.... anyone tried it ?
- Wastegate Rattle on ACCELERATION
- Strange error code after injector replacement.
- Correcting Boost overshoots in ATR
- Procede feature request and 2-step question
- Transmission help requested.
- any jb4 expert in miami area??
- AA Exhaust with Catless DPs?
- Anyone in calgary have some extra meth line?
- N54 making a weird noise! Knock?
- Stock 335 mufflers FS
- Stock 335 muffler FS
- Has this happened to anyone
- HPFP DIY completed
- JB4 Default Settings
- Track prep questions from brand new '13 335is owner and HPDE enthusiast
- BMS Fuel upgrade test results!
- Pinion seal leaking, dealer recommends not to replace
- Bringing Vishnu to the East Coast (Experience Documented)
- Word to the wise on E85
- How long did you wait to change your VCG?
- JB4 18.7psi @3,500rpm log w/ E85+93octane
- Oil Catch Can
- No vacuum at oil cap
- Steptronic ratios and 1st gear use vs DCTs?
- Delete
- n54 Bird Chirp sound (New Turbos)
- $175 for CDV Install
- weird ticking sound is it waste gate?
- Why do people recommend map 1 over 2 on a JB4
- questions about procede rev 2.5
- charge pipe install help
- VRSF DPs installed, 2 new codes
- Anyone have BMW power pack ECU reflash specs?
- Weird VANOS behavior, JB4
- E92 335i FBO 50% E85 Dyno 435Hp & 480Tq
- Just installed 5"ets fmic
- Yellow limp mode indicator on, CC-ID 29. Removing JB3 but need to delete codes?
- Dinan Stage 2
- Bizarre problem
- Should I Reset Adaptation Values? (Misfire On Startup After New Plugs and Coils)
- E30 exhaust manifold/s on n54
- JB4 stage 3 N54 upgraded have question
- Engine Light, studder, and clicking/knocking noise under load
- Ordered a VRSF down pipe, this thread will hold my review on it
- Needs help on Bavarian Technic
- 29DC from cleaning MAP sensors?
- need chip!!??
- Friend wants to unbolt exhaust on 550i
- 6AT Trans Upgrade options
- poof
- Misfire into limp mode
- Change Procede from 6AT to 6MT