3-inch exhaust pipes with 2.5-inch connectors. The pipes are custom-made for 6.4 headers on a 5.7 cat. Suitable for conversion from 5.7 headers to 6.4 headers. Direct bolt-on and fits all models, whether original 6.4 or 5.7 with minor modification. Chrysler, Charger, Challenger Models 2015 and above. Models 2014 and below require minor modification. There is a workshop in Usfan for those who need dismantling, installation, modification, and welding. - Completely intact catalytic converters, guaranteed, without welding or modification. - Original 5.7 headers, guaranteed, without leaks or modification, with all its bolts. - Complete original catalytic converter kit with 6.4 headers installed on the car. The kit includes 6.4 headers with new bolts and gaskets, exhaust pipes, and conversion from 5.7 to 6.4 with an original kit including mufflers and rear mufflers with 6.4 outlets. The kit is model 2019 and guaranteed without dents or leaks. - For details, additional photos, and prices, please contact the owner of the parts. I am just an advertiser.