Dual 4.0" Quad Style Stainless Steel Exhaust Tips Fits Dodge Challenger 08 23 Noor Ul Harmain Travel Umrah Karachi. Comes with TWO Dual tips to make it a QUAD exhaust. T304 Stainless Steel Construction. TIG welded. Mandrel bent. Individual Tip Inlet: 3. 0" Individual Tip Size OD: 4" Total Width of both tips: 8 3 4" Total Length: 9" Double Walled Tips for a high end look. Uniform outlet Mirror Polished T304 Stainless Steel Construction. Can be welded or clamped on Product is the same as in the pictures. The pictures are taken by us personally. Product does not come with installation instructions, please refer to a shop factory manual for installation. Q: How many tips do I get with my order? TWO Dual tips. Enough to make it a quad exhaust. Q: What's the difference between staggered and uniform? Staggered means one tip is slightly longer then the other. Uniform means the tips are all the same length. Typically bumpers that are more rounded will use a staggered tip. Q: Will this fit my car? This is a universal tip. You will need to know the current width of your bumper opening. You will need 9" or wider for these to fit. These tips fit a 3" existing exhaust pipe. If yours is smaller please check other listings that use a smaller inlet. Please note that you will need to cut off your existing tips. Q: What's the best way to install? Welding is the preferred way as its the most secure. It can be clamped on as well but can loosen over time. Q: Is this exhaust street legal in California or other states with strict emissions laws? Yes, This does not effect the emissions of the vehicle and does not get rid of any original parts. Q: Will this change the sound of my exhaust? No. Most of the sound is controlled by the rest of the exhaust. Specifically the muffler, resonators and catalytic converters.