if your talking about the manifold feed in (top hat) like in this picture ? then youve got 4 options.I have just bought an Astra with a C20LET in it. I have a problem the high flow induction pipe is hitting the bonnet so it doesn’t shut properly. Any ideas on what I can change it too and still maintain the high flow?
- replace it with original vauxhall part.
- replace it with some other aftermarket part, and hope it fits.
- modify the part/make your own/customise it to fit.
- modify the bonnet, to fit.
as a temp fix for now, so you can drive the car.... you could probably knock up some spacer plates, for the bonnet hinges, to lift it up 1 inch, or whatever it needs, to clear.