Technical Section > Engine/Transmission/Powertrain/Exhaust

Tuning boxes

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deepeg59:
Anyone used a tuning box on a diesel yet. I know there are issues around the warranty but used one for 3 years on my Alfa 159 and made quite a difference to both performance and economy.

Fangface:
I would be interested to hear if anyone has used one of these and had any issues.  On paper the claims they make to performance and MPG seem amazing but I would be interested to see at what the downside is.  Reading into it the process for fitting / removing seems simple enough but I would like to know if the past presence of one of these units would be detectable if there were issues under warranty.

BigAl:
There's been some discussion about this subject here - starts about half way down page 1. http://mazdacx5forums.co.uk/index.php?topic=124.0

Alan

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