Redex??? Seriously, that made my car run like a heap of junk. As for products like this I think its bull, probably just some carb cleaner. Don't see what people's fascinations are with keeping the inside of their engine clean, the engine wears, the carbon build up to a degree helps etc.... its not a damn trophy that you want to polish every second.
And if its £75 and cleans injectors, so does an ultrasonic cleaner you can pick up for around £25 of amazon, at least that will work better.
