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  1. JB4 CEL idk what to do (New to the bmw world)

    You can delete the codes and see what comes back. exhaust flap is probably because someone has removed the fuse in the trunk to keep it open. Wastegate makes me worried your jb4 wastegate wires may be loose/disconnected. Hopefully not toasted lol. catless DP - if yours is catless then… ok. If...

  2. JB4 CEL idk what to do (New to the bmw world)

    Supra threw a CEL randomly while i was cruising. I have a ARMASPEED intake and a AA DP & Exhaust with JB4 for tunning and i run map 2 only. The car isnt showing reduced power atm. I want to reset the codes and see if they’ll come up again. Im just not sure how i could. Unless its as simple as...

  3. Intake noise question

    Today I installed an Armaspeed intake, and I took it for a quick test drive to see how it sounds. For some reason, when I let off the gas at low rpms (~2k rpm) it makes a noise that sounds similar to when you're slurping from cup with a straw and there's no drink left. I'll attach a video as an...

  4. B58 JB Plus Quick Install Tuner ....

    So why does JB4 have a WG control sensor? BMS updated all the JB4 modules to have this new addition. It's there for a reason. :) It has to have some sort of added value when it comes to power delivery or smoothness/drivability.

  5. B58 JB Plus Quick Install Tuner ....

    The WG control would be OEM. I don't see that as an issue either really. If the JB+ is calling for more boost less exhaust will be gated.

  6. B58 JB Plus Quick Install Tuner ....

    It shouldn't have any issues, JB+ is a fancy boost controller, DP just lets exhaust and turbo breathe better. Only thing is that JB+ unlike JB4, doesn't have any WG control. This is the only place I can picture potential issues... issues such as throttle smoothness or opening/closing of WG...

  7. Anyone mess around with 60-130 times?

    @Mason AA catted dp, eos exhaust, AWE intake that's on an E30 tune thru @Jesse DaBears using JB4

  8. What vavled exhaust to pair with AA catted DP?

    Running the AA downpipe/MBRP catback and love it so far. It's pretty quiet in Comfort but rowdy in Sport. There is slight drone in lower RPMs but could be worse. Apexi is another option as well. I have a buddy who is running AA dp and Apexi catback and it sounds a lot deeper than my setup...

  9. What vavled exhaust to pair with AA catted DP?

    I have the same setup on order so I’m excited. Did you contact AA about the CEL?

  10. What vavled exhaust to pair with AA catted DP?

    I like it. Always getting looks and revs from V8 muscle cars. I do have to trouble two things though. 1) I have a vibration at around 1800-2100 rpms not sure if it’s the exhaust touching something or I just might need a resonator. I did the install myself so who knows… 2) I have CEL…. It’s not...

  11. GR Supra 101: Routes to big power

    Since the forums are ever more active and new people are getting their Supra's I thought I'd make this thread a simple yet very informative way to start out modding your Supra and lessen the load on questions asked so frequently yet answered so simply. The thread will be separated into the ECU...

  12. Exhaust Flap short circuit HELP

    My car just started throwing the short to ground code on the valve. The only thing I notice is on a warm start, it does the roar with the valve closed when it used to do it with it opened. After that, it does open and stay open as intended. No fuse pulled JB4 on OEM valve setting Stock exhaust...

  13. A91CF OEM+ build ~ FP Green on 6-port w/ jb4

    Starting thread for anyone looking for information on the FP green on the 6port.. If anyone has already installed on the 6port please chime in.. Mods: HKS intake, HKS exhaust, HKS springs, AMS cat'd dp, jb4 Hoping to get the FPgreen in this weekend Tune: @Jesse DaBears jb4 map 6
  14.

    Stock exhaust $300 OBO

    Yeah @NitroYellowMKV is a good dude, i believe i sold him my cat as well. for the Stock exhaust - yeah these aren’t worth much of anything haha no real demand. I want to clear out garage space bc it’s massive like @VeroBlue said, i have to imagine it has at least some value. Maybe junkyard or...

  15. AA Downpipe CEL

    Guessing you did check that the CEL flagged the emissions? Just making sure. Pretty unusual to get a CEL with the AA. Hopefully something didn’t go kerfunkle on install. JB4 can clear codes but it cannot stop them from coming back.

  16. AA Downpipe CEL

    Installed the active autowerkes downpipe with a AWE track exhaust, had it on for exactly a week about 300 miles. CEL came on very shortly after leaving work, any ideas on how to fix this issue? Was thinking of a jb4 with a custom map could tune it out if that’ll work.

  17. Next mod?

    Considering this, JB4 and downpipe seem to be my next purchases.

  18. Next mod?

    Depending on what you are looking for, the Jb4 is the best value regarding power gains. If you want a mod that improves power and sound, the downpipe is the better option if you want only sound, get an exhaust Out of the three, I would start with the Jb4.

  19. Next mod?

    Hold off on the Tomei and get a jb4/tune and catless down. You'll get way more sound than just an exhaust.

  20. Next mod?

    Not as worried about aesthetics for the time being, exhaust with catless dp would just make the smile factor go up, I like me some good exhaust notes. But, truthfully some more power would be nice. Just hold off on the Tomei, maybe just get the JB4 and the catless dp together?





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