I have a stock upper and lower intake, the lower has an E6 part number, I know the 86 and 87-93 intakes are different but is it just the upper that is different or is the lower different too? I might have the lower sold, so I need to know asap! The upper has the HO under where the plate would be, so it's a 87-93 right? It dosent have the E7ZE part number though. These stock intakes are confusing. 