KCPerformance BV - De Dijk 6 - 5268KA Helvoirt - Netherlands info@kcperformance.eu +31 13 30 30 000
+31 13 30 30 000

by KCPerformance Seat Leon 1.8 20V Turbo Projects




  • Milltek race downpipe including race catalyst

Engine modifications

  • Blow-off - Valve Twin Piston
  • Borg manual boost controller


  • Second air injection DTC delete
  • Second lambda delete
  • KCPerfromance Stage 1 Chiptuning: 224 HP & 315 Nm


  • New Nokian ZLine tires
  • New wheel bolts


  • New vacuum hoses
  • New 3-way valve

by KCPerformance Overview Projects

This Seat Leon 1.8 20V T came to us because he had trouble delivering the power that the manufacturer promised on paper. After a test drive and inspection we came to the conclusion that there were certain parts in need of replacement. We replaced some vacuum hoses and the 3-way valve so the engine could perform like it supposed to.

We also got the assignment to upgrade the engine. We fitted a twin piston blow-off valve, a manual boost controller and a Milltek downpipe with race catalyst. The software was modified to remove the DTC SAI and the second lambda errors were also deleted. We also gave the car a KCPerfromance Stage 2 Chiptuning to raise the performance to 224 HP and 315 Nm.

To keep all this new power on the road, new Nokian Z-Line tires were fitted. When mounting the rims we used new bolts.

When the customer came to pick up his car he was not only happy to feel that his car delivered the power it had in standard form like it used to, but he was ecstatic now that his car has more power than standard. The throttle response is much better and the engine feels like it can move mountains.


Our Seat related projectsProjects

KCPerformance modified hundreds of cars, all brands and all types Some "only" did a Stage 1, others were overhauled completely or restored and "optimized".

by KCPerformance Ready Projects


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