HKS DUAL HI-POWER EXHAUST: G37 COUPE 08-UP Full dual polished SUS304 stainless Steel piping with dual Titanium tips (adjustable length) 60mm piping, 120mm tip Inspired and designed from endurance and GT racing in Japan, HKS developed its Hi-Power Exhaust system for both turbocharged and naturally aspirated applications. HKS has incorporated this new race inspired offset muffler and piping design into many street applications, which offers a greater flow and higher-PRM power gains due to the less restrictive design. This is achieved by eliminating unnecessary bends for the straightest exhaust path. INFINITI G35 Coupe 2003-2004 ; Full Dual Polished SUS304 Stainless Steel Piping w/Dual Titanium Tips (adjustable length), Includes Y Pipe. NOTE: The Titanium tips are adjustable. Meaning there are two Allen bolts on each side which allows users to adjust the length of where the tips sit in relation to the rear bumper thus allowing a greater amount of adjustability for proper clearance of aero modifications.