Not all performance exhaust systems are created equal. Borla exhaust products are made of 100% pure Aircraft-Quality T-304 Stainless Steel-inside and out. T-304 grade stainless is austenitic (non-magnetic) and has a high chromium content, which makes it nearly ten times more durable than mild steel and has over three times the life of T-409 stainless steel (an inferior grade of alloy used by some manufacturers). T-304's high tensile strength resists cracking and enables Borla to use thinner wall tubing for lighter weight. This is truly a complete bolt-on system utilizing the factory hanger positions. Tips included.