Amuse R1 Titan Extra Catback Exhaust with Gold Ring for Nissan GT-R (R35) 

Amuse R1 Titan Extra STTI Titanium Exhaust System for the R35 Nissan GT-R features an 80mm main pipe, with 70mm piping from the mufflers to the tips, and 130mm exhaust tips (tails).

This flawless system weighs a mere 19.58 lbs in contrast to the OEM weight of 38.39 pounds.