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The DI injectors max out at about the same level as the HPFP, upgrading the HPFP alone won’t really do anything.

Big thread on it: https://www.supramkv.com/threads/xhp-reviews-and-feedback.13166/ Keep in mind when reading that thread that it was started RIGHT when xHP support released, so the first few pages there's a lot of hesitation before tuners got a chance to test things out and there were some map...

lol, abso-fucking-lutely not. He went out of his way to photoshop in your name, car, and mods, and also photoshopped out all references to Z4 in the legend. That was done on purpose to deceive, that was not a mistake. If he really did mean to send that out ahead of a JB4 purchase to let you...

It's not a mod, it's a half-baked mode that was never fully developed and shouldn't be used. If the designers had actually developed it as a usable driving mode, it would have been made available through the normal menu system.

Before I got the XHP transmission tune I was in sport+M mode 100% of the time. After the trans tune I'm probably in sport+M about 50% and normal+auto about 50%. I just hated how the trans shifted in normal mode with the stock settings, with modified shift points it's perfectly reasonable though.

I found this car to be very unstable over uneven surfaces when cornering when stock. An alignment helps, but the only thing that fixed it for me was replacing the rear control arms. I did all of them so I can’t be sure which fixed it, but I’m told it’s primarily the traction arms and toe arms...

Yes the manifold pressure will be the same, but that doesn't mean all is equal. The amount that the turbo heats up the air as it's being compressed depends on the air flow rate and the pressure ratio, that is Pout/Pin. Reducing pressure drop in the turbo inlet, or even creating a small amount...

It won’t though. The added power is entirely canceled out by the added weight. It’ll be the same speed as the normal Z in a straight line, which is quite a bit slower than the Supra. It should be faster than the normal Z around a track, but I highly doubt it’ll be good enough to catch up to...

Bluewater Performance I've had 3 alignments from them (after H&R springs, after HKS springs, and again after SPL control arms), no complaints. They're pretty quick, prices are reasonable, they'll adjust to factory default or to your specs if you request it, they know what they're doing with...

Yes - the XHP tune already bumps the shift points in normal mode up significantly. I was happy with what it did with 1st-4th so I left those alone, but I did move the shift points for 5->6, 6->7, and 7->8 up by 10% each since I felt those were still bogging a bit. Normal mode is fantastic now...

Well, they need to look out of whatever window faces the direction they're currently driving. A couple months ago I had a close call in a parking lot. I started it up and saw a car coming so I waited to back up, after the car passed I put it in reverse and started backing up out of my spot...

Yep, my ECU build date is around Feb 2020 so I have a tunable 2021 as well. Currently running flex fuel on Ecutek.

Makes sense - the ECU had to be manufactured and then shipped to the facility before it could be integrated into your car. My ECU build date is around 3-4 months before the car as well.

Then how are you ranking them? All of them will fit correctly and last forever, which is about as much as you can ask for without taking appearance into account. The Eventuri is certainly the prettiest, but it's not going to install any easier, last any longer, or work any better than the others.

I believe by "quality" you're simply referring to which one is the prettiest? They're all just dumb tubes, any of them will last the life of the car and will have an equal impact on power, which is to say zero.

A few percent over is fine, but if you go too far you run the risk of maxing out the fuel system at full throttle. One time I spaced out while filling up and accidentally went way over before catching it. I ended up at something like E60-65. It ran fine, I just took it easy for ~30 miles and...

I wasn't able to run any spacer on the rear of my car with 295/35/19 RT660 on the stock wheels. Without a spacer there's no rubbing, but with even a 5mm spacer they rub on the fender liner. That's with the full set of SPL arms and around 2.3 deg of camber, you may or may not have the same...

295 hp @ 1550 RPM is almost exactly 1000 ft lbs of torque, lol

$4k is my guess

It doesn't do much even with an upgraded manifold on the 3.0. I see around 5F lower temps while cruising with the CSF heat exchanger, no real difference during pulls, no difference in how long it takes to cool back down after a pull, it just settles down a bit lower. Not sure what it would...