You are looking at the PERRIN Dual Tube Cat-Back Exhaust System. This system uses a dual tube system. It starts as a single 3" tube then transitions into a Y that feeds into dual 2.25" tubes. These two 2.25" tubes continue all the way out to the mufflers at the back of the car.
Here are the details:
Sign up and save
Subscribe to get special offers, free giveaways, and once-in-a-lifetime deals.