Seen an easy way to tune your t-jets it simply plugs I'n to the onboard computer box simply plug and drive and gaurantees +30% power and +30% torque. It's only £100 but seems to good to be true and so easy to fit. Has anyone got one of these or no of anyone who has one or has any experience of this kit?? I would like to know more about it and hopefully it's not a scam. Also would this increase fuel consumption compared to the normal fuel consulting as standard. Any help with this product would be appreciated.

www.eBay.co.uk/itm/TUNING-CHIP-BOX-...arts_Vehicles_CarParts_SM&hash=item3cb81a6ab2

More than likely just a few resistors, leads to overfuelling, bad for engine.

Stick to tmc, at least you know it will be reliable.

I use to have a http://www.dieselexpress.co.uk tuning box on my Stilo JTD, cost less than £100, had 8 settings, easy to fit. I'd recommend it.

Waste of money. Would see better results from taking the back seats out.

Just had a look at the tmc boxes but there asking for £300 So you think it will introduce more fuel into the engine and then fkin it up?!

You would be better off with a ecu remap. Plenty of companies offer them for £300 or less.

mattyson09 said:

Just had a look at the tmc boxes but there asking for £300 So you think it will introduce more fuel into the engine and then fkin it up?!

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Don't spend £300 on a tuning box, for that price you can get the car remapped.

The tuning box I had cost less than £100. It increased the fuel rail pressure so more fuel was injected resulting in a very nice increase in power. There was 8 settings so the amount of power gained was adjustable. However, adjustment should be made slowly, starting at level 3 and working your way up. Level 6 was perfect for me. Any more made the car wheel spin very easily in second gear when it was raining.

Have a read of this thread.
https://www.fiatforum.com/stilo/247489-eventually-decided-try-tuning-box-im-impressed.html

You can't overfuel a petrol engine like you can a diesel, they require a precise air/fuel ratio. Simply upping the fuel pressure would result in a very sick engine and a destroy the cat almost immediately. A petrol tuning chip would have to up the boost.

why would you spend 300 quid on a chip when a full rolling road custom map is only 200. Fair enough you could take the chip off and sell it on again but if you have other mods a tuning box would be outperformed by a map