4JJ1 Boost Pressure Adapter
Vehicle suitability,
- Holden Rodeo RA7 4JJ1
- Holden Colorado RC 4JJ1
- Isuzu D-Max 2006-2016 4JJ1
- Isuzu MU-X 2012-2015 4JJ1
What the 4JJ1 Boost Pressure Adapter is used for,
- On the 4JJ1 engine, there is no available vacuum hoe reference to take things such as a boost pressure reference from for things like boost gauges or waste gated turbocharger upgrade.
- This is because the MAP sensor is built into the pipework, meaning there is no hose to tee into as the factory sensor plumbs directly into the piping.
How it works,
- This boost pressure adapter spacers up sensor allowing it to still fit in it’s factory position, but allows you to take a boost pressure reference from the barb that now protrudes out of it.
Fitment information,
- Direct fit upgrade – no tuning required.
- Comes with new O-ring keeping it all perfectly sealed.












Its a great company, came in with in 4 days and I got my favorite colour too which was nice
Great customer service will reach out to you if the product isn’t in stock with other options to suite highly recommend buying from this group and postage doesn’t take to long
It Was good easy to talk to helpful quick delivery to. HD auto called me to tell me items out of stock gave me the option to wait for the new order or not .
The new order only took a few days & it was on its way arriving .
Will definitely order again through HD auto.
Fast delivery great product and service