Injector seats

[SamHendry]

Recently purchased some from audi for my S3 although little worried they are wrong. Basically did a bit of searching through the forum and I discovered pre facelift injectors seats need a 17mm hex head for installation and facelift need 20mm hex head. I own pre facelift but audi have given me 20mm seat. Will the 20mm fit my inlet mani.?

Apologies if this is a silly question but I want to be sure before I start removing old ones.

 

[SamHendry]

Bump

 

[Jenno007]

I personally have no idea but have you tried checking the parts guide for the part number and then googling the specs of the part?

Wish I could be of more help