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My exhaust flap seems permanently closed. I've tried doing the BC thing and also double tapped the CANFlap gauge. The left blinker signal blinkeded. Turned the car on and off and the exhaust flap stays closed. Any ideas?

I vaguely remember reading somewhere that you actually lose power with mesh vs. using a velocity stack filter.

So here's the setup... JB4 harness with ethanol content analyzer (ECA) wire pinned to position #4 on the 25 pin JB4 harness. ECA from eBay heat shrink-wraped with ethanol content sensor harness attached. Add-a-fuse with two 5 amp fuses which will plug in the F47 spot of the U.S. passenger...

Is this at Load? And is this in Fahrenheit or Celsius?

Where's the other flap?

0 ° C

5 minutes later... HI SUSAN!!

Did you get the Euro Z4 ones or the U.S. pro kit?

Sorry for the blurry pictures but I'd thought that I would post what this looks like. Funny enough, the pin number is actually etched into the harness on both sides but I was only able to see it when I turned the camera flash on.

I think this would only be beneficial for the same mods and driving conditions, right? For instance, I don't think I would want to use someone's Map 6 tune from Denver if I live in Colorado because of the elevation difference.

Curious to hear this myself.

At first, I thought it was just me but others felt a drop in performance after I installed my CTS intake. It has a tall metal heat shield but the filter isn't really protected behind it. So then I decided to install the Verus heat shield and I felt a little return in power. Might have been a...

If you're on Instagram, check out @nesupras. There are a bunch of cars in the New England area that have had wraps done.

I bought the fittings, E content sensor, and the E analyzer from ebay. I also got an add-a-fuse kit to power it. All in, I spent about a little less than $250. Not bad for what I need it to do. As per @razorlab 's DIY, I will use the F47 spot in the fuse box to power it. Keep in mind, I'm not...

Awesome! At first, I didn't quite understand how it could be reused and then I watched @kern417 video on YouTube where he installed the MHD flex fuel kit using these fittings. You only need to unplug one side of the low pressure fuel line and get to reuse it. This is great, thanks!

The car is a daily driver and has aspirations to one day be a track car. So short power bursts to answer your question. It doesn't look like str8shot is making this harness anymore so I'm thinking about building my own using an Arduino Nano board using instructions here. There seem to be some...

I guess I'm mainly directing this thread to the JB4 crowd that are primarily concerned about the E content in their gas tanks. The unlocked tuned folks usually have E content reading integrated into their tunning platforms (MHD, BM3, Ecutek, etc...) which will dynamically tweak tuning...

Thanks man! I agree, they all basically do the same thing. The only difference is buying an out of the box commercial kit vs. DIY something which can be pieced together at a slightly lower cost. I was just curious because I searched and didn't find anything pointing to this kit.

Hey Folks, I've recently started tinkering and researching all things JB4. Kevin (YouTube: kern417) published a video about piecing together an ethanol analyzer which is less expensive than buying a commercial flex fuel kit which can run between $295 (Vader) - $500 (BMS/Fuel-It). Kevin...

I did not call to see if it's available or works with the car. You and others here are more than welcome to investigate ;)