Scope of delivery: - Sport exhaust stainless steel ø 70mm for Audi TT 180/225hp Quattro from catalytic converter with EC approvalTechnical data: - from catalytic converter - Stainless steel - ø 70mm (2.75") - with EC approval (registration-free) - 2x tailpipes ø 100mmfits for: - Audi TT 8N 180/225hp Quattro 1.8T year 1998-2006/06 Coupe/CabrioletDescription: Our exhaust systems come from Sweden from the brand Simons and are manufactured according to ISO9001:2008 standard. Before the systems are launched on the market, a prototype is created by the product development department. This is always adapted directly to the vehicle, sound tests are carried out, engine efficiency and back pressure are measured. This guarantees 100% accuracy of fit and engine harmony. Because a turbo engine, unlike a naturally aspirated engine, does not require exhaust back pressure. For turbo-powered vehicles, absorption mufflers are used and for naturally aspirated engines a chamber system is used; both are very sound-absorbing and still have a throaty, sporty sound (of course, this is up to the observer). The sports exhaust systems usually all have EC type approval (see description).