Private Label Mfg Power Driven Titanium Downpipe for Nissan GT-R R35 GTRPLM Private Label Mfg Power Driven Titanium Downpipes for Nissan GT R R35 was made for maximizing HP gains while saving most weight, by using the best and lightest material available: Titanium. The Titanium Downpipes generates more horsepower by optimizing engine airflow and volume through carefully selected, application specific tubing lengths and diameters and increased wave scavenging effects for more horsepower. CNC titanium flanges and multi cuts