I've got this for my car hopefully be good as I've got a Honda st1300 bike and had them in it for years and thay really make a difference to the power and economy response of the bike so hopefully do the same for the car
Fitted to Renault Clio MK2 1.2 16V with D4F-722 engine.
It's now very quiet and smooth. Throttle response is immediate and pulls better in the lower range while being much quieter on freeway. Highly recomended with this engine.