Our aluminized exhaust systems are made from heavy 14 gauge aluminized 2" tubing.  System sets include two down pipes and two tail pipes all bent to factory specs..  Some exhaust systems are oversized and will have additional shipping charges. 
(some additional cost $20.) 

All of the exhaust systems are 14 gauge 2"  2 1/4" or 2 1/2" tubing for big blocks. Kits do not include mufflers,hangers or clamps.