03-07 Infiniti G35 Coupe Full Stainless Gt Dual Catback Exhaust 03-08 Nissan 350z 03-07 INFINITI G35 (COUPE ONLY) OR 03-08 NISSAN 350Z FULL STAINLESS GT DUAL CATBACK EXHAUST comes with the extention for g35. dual exhaust , real hp gain.15 hp. 100 % full polish stainless steel with polish finish. CNC machine flanges for strong solid support light weight ( 25 lbs lighter then stock ) Increase 20-30 horse power and torque. Straight thru design and bolt-on installation.