Performance chip??

[Blowout]

Originally Posted by Mozzie

Thanks for those trying to be helpful. I do appreciate that there are a lot of genuine people here.

Weasel raises a great point about warranty, as I still have warranty would need to think through. For those that took the time to look at feedback from the seller (rather than just making a joke out of my original question), there are a number saying that it made a great difference on other vehicles - as well as some who said it didn't, hence my reason for asking re the X5. Also thanks to mrbmwx5, there are certainly some strong supporters for the sprint booster. So even though it is more expensive, sounds like a better piece of kit.

You also need to be wary of feedback shown on sellers because some sellers have been known to plant positive feedback about their service and products. I always try to check the seller out with a search of their company.

I have gotten some real deals on ebay, but also had one that the product wasn't good and they had great reviews. Returned it 3 times for replacement and then gave up and got my money back.