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  1. The official ask zrk anything thread

    If anyone would know, @zrk would. Like you, I have a catless dp, AWE track exhaust and a JB4 that I use in town (not on track, yet…). When I was throwing various codes (chassis or steering angle to name a few) the car would not hold gears/shifts in manual mode (sport or normal). There was...

  2. Official A90 Supra life cycle thread: updates, new variants, 2026 final model year?

    One of the few cars that I’m truly living in the moment and having a blast ? I get the question so much at the track “Is that a Supra?”, I bought a couple of these: https://revlimitshop.com/collections/frontpage Yes there will be different iterations. Mine is a 2022. Catless and insanely loud...

  3. JB4 Exhaust Flap Question?

    So, I love the sound of my cold starts with my exhaust flap open (it's WAAAAY LOUDER with ARK DTS exhaust and Catless DP) but I also live in an apartment building and I don't want to be "that guy" all the time with the loud car. I know the JB4 can force the exhaust flap open. But can this be...

  4. Routes to 500 whp?

    do you think an intake manifold upgrade is really necessary for a "street" setup?

  5. How much more enjoyable do mods make your car to you?

    I only have a JB4 custom piggyback tune for 93 octane and it’s great! Jesse can dial up or down the power to your desire. With the stock tires, there’s very little grip. But I’d rather have the power and modulate the pedal to desired effect ?

  6. Routes to 500 whp?

    500hp - jb4, downpipe, meth, e40. you don’t need an intake, you don’t need an exhaust, you only need a chargepipe because of the fact you need a methanol bung. There’s no need to change ignition coils. All of the cars with 1000+ hp use factory coils. Intake manifold… sure. I recommend that for...

  7. Routes to 500 whp?

    I guess I'm somewhat surprised. Obviously this isn't an MKIV/2J and I didn't walk into this car expecting that to be the case with chasing power. I did figure with it being 382~ rated at the crank that puts out roughly 388~ at the wheels for a 2021+ car, that it would be easier to reach 500whp...

  8. The_Silver Bullet build thread***

    That's in the 11s easily if you learn how to drive it. ;)

  9. The_Silver Bullet build thread***

    Ok, so more like a .45 ACP, fat and slow, just like me, lol…Been slowly building this thing up so might as well start a build journal to keep track. I’ve always been a fan of a clean stock looking car, I guess it’s been called OEM +? Here’s what I have so far: **22’ Base 3.0 **Exterior: 15%...
  10.

    OBD Link code help P0607

    casual driving, literally 35 mph when it happen catless dp, exhaust, intake, charge pipe, jb4 but was running map 0 at the time I Dont remember exactly what it said but I do remember it saying something about Powertrain Control Module (PCM)

  11. How much more enjoyable do mods make your car to you?

    Holy crap you’ve done your homework! This is so spot on…. The Supra is so capable on track. It’s really the driver. That’s an obvious one and will make you fast as hell on track. And no arguments on other crap for making this car “more fun.“ I have a custom JB4 map for in town fun (can turn it...

  12. How much more enjoyable do mods make your car to you?

    So far, I've tracked my car once and THEN tried a downpipe (to reduce heat and back pressure and hopefully take some strain off the turbos and engine), JB4 (sound like a cheap way to get more horsepower), wheels and tires, and brake pads/fluid (obvious track day modifications). Like you, I...

  13. Intake and catless downpipe without tune!

    I have a catless dp, MST intake and AWE track exhaust. I turn my JB4 off (Map 0) on track to avoid any hesitation or limp mode. I’m confident Jesse can work with me on this. I just need to send him the logs. But I’m having a blast on track and putting down really good lap times, without...

  14. How much more enjoyable do mods make your car to you?

    Exhaust 1st so she sounds proper. Hi flow or catless dp adds to the experience as well, imo. I don’t mind the CEL however and live in a very non restrictive state (hence my new Florida guy avatar). The JB4 piggy back tune is really nice. Jesse is great to deal with. It’s fun for in town and I...

  15. How much more enjoyable do mods make your car to you?

    Nice, certainly an endorsement for modding this car if FBO and E makes it more enjoyable than a z06! thanks this was exact kind of input I was looking for Yessir, I am fully aware of all the tuning options, knowing what I want to do to the car is not my problem haha...it's deciding if I should...

  16. zrk / a90_nojz Build

    Black is the wayyyyy brothaaaa ? nice build! Similar to mine! A90 DoubleD!
  17.

    JB4. Exhaust error code

    Can anyone tell me exactly what I can do for these codes?

  18. Dragy times/vids

    that is very good for 91 octane then on the street.

  19. Dragy times/vids

    Full carbon intake, charge pipe, catted DP, Exhaust and JB4 w/map6 by @Jesse DaBears

  20. Its been a long… I mean short journey on my Supra build out

    So I bought the car 12/2/22 so just over 3 months ago (Which if you know me is like 3 car years). When I bought it I was like just gonna drive not gonna do anything just tint the windows and enjoy It. I made it to week 1 of ownership and the JB4 got installed... Yea I’m on Oak I tell ya. Then...





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