I’m thinking of having my 2002 sti terracleaned. Wondering if anyone has points of view for and against about it.

 

I thought about this and it probably does work but think about it the carbon build up will just return rather quickly. If your car cannot pass emissions then go for it. Terraclean probably the best one out of the bunch but not worth it IMO.

If ain't broke don't fix it springs to mind. There was a stand at Goodwood FOS and we spoke to the guys. As soon as I mentioned WRX they eye lite up and they were not interested in my dads diesel anymore. They said they have really good results with Subarus. Hmmm I guess they thought, oh WRX guy with some money blah blah. Remember they are salesmen and they will tell you what you want to hear.