Service due… warranty… exhaust!

[NRG1976]

Service is due on my GR in the next couple of weeks, it is going to a dealer.

The car has a Milltek exhaust (it was on there when I bought the car privately).

Should I swap the exhaust over back to stock before going to the dealer - not sure how strict Toyota are on mods like this vis-a-vis warranty?

[NRG1976]

Thanks, I’ll give them a bell on the premise that I was thinking of adding an exhaust.

[NRG1976]

Updated a different thread, but I had no issues at all with having the exhaust on the car. In the paperwork they marked as “no modifications”.