jb4 tuner

Hi! finally got the Jb4 in. 21 supra 2.0 running on e15 same tank for both logs. Only have AWE catback exhaust. Map 2: I believe my log looks okay, but I feel like my boost peaks way too high. And is my AFR sitting in the right space or do I need to target a richer mix? Something just feel...

So I posted a thread not too long ago of some logs I did while running map 5 and it wasn’t pretty, I was informed to try out map 4, here are those logs. I’m concerned with the afr’s @ColonelAdama @Jesse DaBears

For sale is the JB4 off my 3.0. Used for about 5k miles. Comes with OBDII power cable, DMD bluetooth connection kit, and EWG functionality. $400 $350 OBO shipped to the lower 48. Let me know if you have any questions!

Sold my lemon supra, no longer need it. Will ship to the lower 48. Used for about 4 months. Comes with OBDII power cable and DMD/"Wireless Smartphone Connection kit".

Bought this a year ago but never installed it because I spent more time 3D printing than working on the car. Follow up here or dm me if you have questions

I actually bought this from another forum member but I never installed it in my car. They used it for ~700 miles. I'm just not looking to tune right now. Ready for JB4 Mobile app management. Unlinked from account and ready for a new host. $375 shipped but would prefer pickup in Orange County...

I've seen repeatedly on these forums that everyone has their Map 6 settings dialed in by Jesse for ~$500 or so. I found this rather unusual just coming from a MK7 GTI that I've been running Map 6 for 7+ years (never had an issue, even at 26+ psi stock turbo e30). I was able to dial it in myself...

I'm interested in gong catless. I hard the Armytrix catless with simulator works with the JB4? Is this the case? And are there any other catless DP that work with the JB4, with no tune, and no CEL.