Originally Posted by Kotlkn
What modifications need to be made to the ST exhaust to fit on the non-ST Focus. I just purchased a ST exhaust for my SE and need to get it installed. I would like to know so I can get an accurate quote for the job.
Did you get the rear section only, or the entire cat back exhaust?
If it's the entire cat back exhaust the front section needs to be cut and rotated to sit back inside the exhaust tunnel as the flange is rotated on the ST coming off of the down pipe somewehere close to a 45 degree angle compared to being parallel with the ground plane for the n/a Focus.
If it's just the rear muffler up to the axle back section all you need is to remove the axle back on the car with a saw or similar, then mount up the new part and use a slip fit adapter tubing and weld or clamp it in place. The ST rear muffler hangs in the same locations as the stock one.