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Price drop, cheapest JB4 on the market. I’ve had several messages. It should move at this price. DM me for PayPal/Venmo.

Still available

I’ll sell you a JB4 with Bluetooth, fuel sensor and wastegate connections for $250 shipped (in lower 48). Map 6 is a custom E35 tune for a catless mt car. It was on my final edition before I unlocked it. I had a Kenji “race” dp and had zero CEL’s with it.

I had the Fuel-it ECA, but someone picked it up for $250. It serves me no purpose since I did the unlock, so I’d like to just move it.

Probably the same people saying 8.8 and 10.9 on the cam bolt head meant you have the old or new oil pump..

Yes, I ran it a little while with MHD. The real benefit is it won’t throw a CEL on a locked DME.

New unopened HKS air filter for the A90 MKV B58 Supra. $30 shipped to the lower 48.

(SOLD) I’m am selling my Kenji “Race” down-pipe that was used for a couple hundred miles. I can personally say I had no CEL during ownership. Will include an OE gasket. $450 shipped to the lower 48

JB4 with Bluetooth connection, fuel pressure connection, and waste-gate control. (map 6 is a custom E35 tune for mt) $200 shipped to the lower 48

My assumption is dropping wg initial position would hurt response <1500rpm and on tip in where you could tailor boost on shifts with the redux feature. The other log went from 18-28psi on 2-3 shift and immediately reduced throttle. I read where he stated he wanted it high because manuals would...

@ColonelAdama have you ran into over boost on up shifts with a mt? Jumped from 18psi to 28psi the other day. I’m assuming shift redux from each gear will be better than setting default wastegate position because I could control how much boost I’ve got going into the next gear vs a global wg...

What is considered a good boost target for E40? Have you ever seen timing increase on e40 where octane was increased through boostane or methanol? I think I read 16* was as much as it would add without spoofing. I don’t think I’ll be but a couple degrees off that with the boost <20psi. I’m kinda...

I added some ethanol, Fuel-It reads 50% now. I made a few adjustments after this log. Dropped WGDC in the lower rpm, dropped the FF from 35 to 30, increased FOL from 60 to 70, PID from 20 to 18. Is throttle closure related to calc_torque being 50 or is the HPFP low and offsetting with throttle...

First, thank you all for the work you have put into making this thread. I am new to this platform and it looks like a lot has been sorted out with the JB4 on manual transmissions so far. (I’ve only read 42 pages, so don’t flame me 😁) I’ve got a 2026 MKV Final Edition manual trans. I made a hit...