I just bought a '98 GL. Is 2.0 liter 4 cyl a Zetec engine? I want to increase power and gas mileage, or at least increase HP without decreasing mileage. Just put in a K&N air filter. It looks to me that now the exhaust is the next thing to do (??)Can the headers from the Focus be used or not? Some specifics on 2.25" exhaust and removing the resonator, please. Anybody know about Spintech mufflers (spintechmufflers.com)? What about Catco high flow catalytic converter?What happened with the ground effects kit group buy from Carisma Auto Tec? Thanks!
