The oem sensor was for my impreza at £306.
I cleaned the inlet on my impreza, and levorg, and my impreza was clean before I started.
My levorg was like a dirty diesel, and although it felt much more responsive after cleaning, it didnt improve mpg...
If Esso is better than momentum, I'll get that as it's the same price where I am.
Vpower however, is about 10p more.
I read an interesting thread on scoobynet.com about o2 / lamba sensors clog up with carbon build up and all they need was a blow lamp to make it red hot to burn the carbon away...
Im just intrigued, as the Tr690 isnt avaliable here, unless I import from Japan, and then there's the language barrier.
There is nothing wrong with mine, but a spare could bs handy.
Hi Bims, did you get yours via torque gt?
They imported mine for me 4yrs ago, and I only use momentum. That is until I get enough points on my works car shell card, and then some free power goes in.
I have my build thread here
https://www.levorgclub.com/threads/robsyuk-2018-levorg-sti.1185/
Once I find the correct part number, I'll search online.
Ill take time to message each company to see what deals they can offer.
Now the exhaust is done, I think it'll be the next mod.