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Discussion Starter #1
If you don't have a tuning box for your diesel Sorentos you have to get one, there awesome. The 25% bhp increase turns the car into one magnificent beast that goes like we in the UK say "Hot Snot".
Bends that I used to have to drop into 4th gear for are now easily took in the 5th as there is plenty of pull as you come out of the bend. The whole thing runs smoother and the acceleration difference is suberb. I will keep you posted as to miles per gallon but as long it is not horrendous I don't care. :D
 

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I have never heard of one of these that ups the performance by a huge 25 % !
also...
These surely invalidate the warranty from Kia ?
 

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Discussion Starter #3
Go to www.tuningbox.com for more info. Yes they do invalidate the warranty but they simply slave in between a socket and and a plug using OEM connectors. They take approx ten minutes to fit and the same to remove so when your car goes in for a servicing you simply remove it and then refit it once you have your car back.
 
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