While many car owners will tell you that the jb4 unit doesn’t void.

Worried that installing a backup camera or power liftgate will void your car warranty

Learn what the law actually says — and what dealers can't legally do.

Jb4 is just a piggy back system

As long as you disconnect before going to dealer, they won't know.

Learn how to upgrade your car's performance without voiding the factory or extended warranty

We discuss 9 popular mods that will keep your vehicle protected.

Adding a few hp at the very real expense of voiding factory powertrain warranty is a juice not worth the squeeze

The reward of a slightly less slow truck isn’t worth the risk in my estimation.

The jb+ or jb4 does not void your warranty

However if there is a failure or a part that could be attributed to the aftermarket device, that warranty claim could well be denied.

The traces of the jb4 were there, the owner eventually confessed it was previously tuned with a jb4

The logs stated the speed, rpm, temperature, and boost

The boost was easy higher than stock

The only way to have your warranty honored is to get a extended warranty from a private company.

The jb4 installs between your car's sensor and its dme/ecu (computer) and manipulates vehicle performance through these connections

Installs and removes without a trace

Will my warranty get voided if i were to take it out before servicing at the dealership

I’ve heard some dealerships can find out if a jb4 was used or not and some places can’t.

Fully removing a jb4 from the car.

It absolutely can and it is traceable

Now, will it actually void your warranty

It is basically a game of chance

It is completely up to the individual technician working on your vehicle.

The jb4 has been off the vehicle for a few hundred miles and i have reset the ecu… is there any potential for the dealer to see my driving history

Is kia known for trying to void a car’s warranty?

I asked my subaru tech if an ets intake will void warranty

He told me that i can do whatever mods to the car from intake, cat back, full exhaust, etc but if you tune, it will void warranty no matter what.

It can void your warranty if you come to the dealership with jb4 hanging from your ecu and ask for warranty repairs

If you are buying and installing the jb4 unit, you are playing a game with.

Hey i wanted a more expert opinion about the mods i can do without voiding my warranty

From what i heard its

The jb4 can also be found by checking the fuel/tps logs and can also result in a td1

Best practice is to assume your warranty is void if you're going to get a tune, some will say they have to prove that the.

Hey guys, currently have a jb4 installed and need to go get something fixed

Can vw detect a jb4.

I opted for the extended warranty to 100k but after some reading i hear that basically any mod will void my warranty

I plan on doing cobb ap (will the dealer know even if i uninstall.