After installation it usually creates higher clearance between the front driveshaft and the passenger's side exhaust crossover tube. The kit comes with CNC precision machined DOM steel tube spacers that usually tightly fit the factory exhaust flare joints. With the tight fit there are no exhaust leaks but still maintains the flare joint adjustability. The kit is included and if you wish to completely reverse it is possible or if you want to do some exhaust modifications. This kit is to be used with suspension systems in the market where you need exhaust to driveshaft clearance.