Hi Galvic and welcome to Torquecars. What Modifications have you done to your car so far? Whats the tuning scene like in Croatia? What cars are hot.
I'm Very dubious about this modification. On a closed loop cat system if the Lambda sensor reads fuel too rich then it backs off the fuelling negating the effect of the resistance on IAT

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Surely if it was that easy to get more power then all car makers would do this as standard. I will be very interested to hear from anyone that has fitted this mod to any car and got a measurable performance increase.
Be sure to post a Hello in the Citroen Section and meet the other SAXO owners out there.