Tb

[Eddie the Eagle]

is a 88 spec TB diff to a 90 spec TB (both N/A manual)

[Bryank]

Later models have more plumbing/vac lines that you'll need to block off & you'll probably want to use the same TPS sensor as the year of your car to be safe. There are differences in the Y pipe to the plenium too, but they are interchangeable.. (i have '89 TB and Y pipe fitted to a '92 motor)

[Eddie the Eagle]

can i use a 88 TB "y"pipe and plenium( i thought it was inlet manifold, are we talking the same piece) on my 90? as i took em of my spare soop and polished em id hate to have to sell em now after the 2 weeks of knuckle grafting