GReddy Power Extreme R SpecificationsKnown worldwide for its exhausts the Japanese manufacturer GReddy presents the Power Extreme R catback for Nissan GT-R R35 with VR38DETT engine.Made of high quality SUS304 stainless steel ensuring excellent durability with full TIG welds and titanium look tailpipes (heated blue effect) it has been developed to suppress unpleasant frequencies while offering a very nice aggressive sound.By design this unrestricted exhaust with a premium finish significantly improves engine performance for great driving sensations. It gives the vehicle a pronounced and identifiable sporty style. It is fully bolt-on and mounts in place of the existing one without modifications on models from 2007 to 2010.Warning: Installation on 2011 model year GT-R requires removal or modification of the riveted aluminium plate inside the rear diffuser to allow clearance for the silencers. On 2017 model year GT-R the exhaust valve will need to be removed and the ECU tuned to turn off the engine light.Characteristics :Section : cat-back (after catalytic converter)Material : stainless steelType : 2 parts diam. 90 mm / 4 x 60 mmTips : 115 mm titanium effectSound level : 92/91 dB (right / left) stabilized at 4800 rpm (OEM: 89/89 dB)Note: For even more performance GReddy recommends pairing this exhaust system with the Circuit Spec front pipe and center pipe for GT-R also available.