im pretty sure his ecu likes the narrow band

+1 haha

Also you can use the narrow band now if ur on a budget.

Save a couple checks, go wideband. My plan.

Widebands are the only way to go.

Eat a dick. His tune doesn't like the narrow band. Any decent wideband can simulate a narrow band while giving you actual information. My narrow band gave me 2 lights in the "rich" section for a full pull. After getting a wide band I found I was as rich as 9.5:1 and as lean as 13.8:1 over the same rev range. Narrow band can kiss my ass.