ArizonaMK6
New member
Hi! I recently bought a Mk6 and I could not be any happier. It's my first car I bought on my own. I had some work done to the car to make sure it's in tip top shape. I wanted to move to stage 1 Apr Tune. I read on the website you need the factory down pipe. Thing is, the car has the factory down pipe, but the previous owner removed the muffler. Will this have any adverse effects if I decide to tune the car?