H&R Trak+ 20mm DRA Wheel Adaptor Bolt 5/100 Center Bore 57.1 Bolt Thread 14x1.5 Wheel and Tire Accessories>Wheel Spacers & Adapters allowing exhaust gases to bypass

allowing exhaust gases to bypass the muffler

Not only designed

They are a direct fit for the 2005-2010 V6 and GT Mustang as well as the 2007 to present model Shelby GT500

engine builders and hot street cars

if you're looking to keep it stock in the back

H&R Trak+ 20mm DRA Wheel Adaptor Bolt 5/100 Center Bore 57.1 Bolt Thread 14x1.5 Wheel and Tire Accessories>Wheel Spacers & Adapters allowing exhaust gases to bypassH&R Trak+ Wheel Spacers move your wheels out so they are flush with the fender instantly giving your vehicle the perfect stance. Whether you want improved handling, increased safety, or simply want your car to make a statement about your individual style, Trak+ Wheel Spacers can help you accomplish your goal and GO WIDE. Manufactured from a special proprietary alloy that has a higher tensile strength than 6061 T6 billet aluminum, H&R Trak+ Wheel