Do you have zenden extractor for Waja 4G18P 1.6

What do you recommend for improving driveability and pick up at all RPM range compared to stock extractor. I used this for travelling 40% and 60% city use.

My main purpose

- Reduce fuel comsumption, comfortable at highway cruising speed , improve pickup for city drive.

This post has been edited by 779364: Sep 9 2010, 06:32 PM