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Hi, I’ve had my STX 550 2012 since 2014. 19k when I bought it, 130k now. Upgraded the intercooler, 3” exhaust and tune. Tow a 2.5t boat and it is great. No real issues with the engine, but have always done log book service. Had to replace an O2 sensor and the turbo boost controller as going into...

Hi, I had a 2004 pathfinder vge3.3 petrol. It would run until it warmed up and then would cut out. There is an ignition box in the distributor, under the base plate that would short out through a crack once it heated up. Changed the distributer and good after that. Took us weeks to find it.

Hi Andrew, I had similar issues, random loss of power, generally on open road and after trying to accelerate. I took it to a diesel upgrade shop and they identified the exhaust O2 sensor and the turbo controller. I changed both and all issues resolved, its an easy job to change both, buy the...

Hi, I also have a 2012 V6. I was getting 12.5 l/100 around the city and 10.5 on open road. I have a larger tyres. I was not happy with this or the severe turbo lag, so did the following mods: I installed a 3” exhaust, from turbo and plasma hard piping from turbo to manifold. I also installed a...

Andyjo, I have a 2012 STX. I have had the same limp mode issues, but after a dyno tune. My EGR is blanked. I have to turn it off and restart it, which generally clears limp mode, but its concerning if towing and you cannot pull over to restart. I found that a good flogging in the sand under...

STX 550 Catch can in front left of engine bay

STX 550 upgrade to 800NM plus

STX 550 intercooler hard piping

Hi Guys, 2012 stx550 97k on the clock. No real issues, rotors around 60kms. I have hard piping, after market intercooler, catch can, 3” exhaust and remap. I tow a 2.5t boat occasionally, so wanted more torque, getting upwards of 800Nm now. Its been a great tow vehicle and awesome ute, starting...

The only time I have the transmission slow to engage is on first starting the engine. It takes a few seconds to engage. After that its fine.

Hi, I had one fitted last week, it's been mounted at the front left behind the headlight see the photo in my garage.

I have had the 3 inch exhaust and retune, made a huge difference. Last week I installed a catch can and a new intercooler. Didn't see too much difference, but suspect I will see a lot more low rpm torque when towing. ECWest did the tune.

I had one fitted to my 550 last week. The mechanic said it was a big job. I also had a new intercooler fitted.

STx 550 Towing 5.5T boat

4.5T boat plus 1t trailer. Pulled it out with no problems.