Right, it'll help get max performance out of the engine but it won't really improve fuel economy unless your lugging the engine and computer has been pulling a lot of timing. The latter part is unlikely as you live way north in sweden.
Former owner of '99 CSVT - Silver #222/2760
356/334 wHP/TQ at 10psi on pump gas!
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'05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red
'06 Mazda5 Touring, 5spd,MTX, Black
