Includes: 1 X Aluminum Alloy Header Tank Condition: Brand New. Never been used or installed Color: Black / Polished Chrome The TT Racing Nissan R35 GT-R Coolant Expansion Tank is a simple bolt-on upgrade designed to enhance the overall appearance of your engine bay. The Alpha R35 expansion tank provides a 50% increase in coolant capacity over stock (3 liters vs. 2 liters). Unlike the translucent stock plastic expansion tank, this stronger aluminum construction provides a much improved resistance to staining and will not warp or become brittle over time. Bolt-on design requires no modifications or cutting 100% 6061 aluminum construction .