Honda Civic / Integra B-Series close ratio 3rd, 4th & 5th gear set. Developed to withstand the shock loads of Irish Tarmac Rallying. Suitable for mild to full race B-Series engines. We recommended using the 4.9 straight cut final drive gear set with OEM 1st & 2nd gear. Kit consists of six gears. Ratios are as follows; 3rd 1.625, 4th 1.296 & 5th 1.033.