The RacingLine Coolant Expansion Tank Cap will keep your coolant expansion tank at its perfect pressure to be sure that your high-performance engine’s coolant system is performing exactly as it should.
The cap's a critical part of your car's cooling system to ensure that correct pressure is maintained, and never exceeded.
Older, worn stock coolant caps loose the ability to hold correct pressure to keep the coolant at maximum efficiency.
This is an engineered, billet replacement coolant cap to replace the cheap plastic one, with sophisticated internal springing and bleed off.
Don’t confuse this RacingLine full replacement cap with other cheap covers - which simply stick on over the plastic cap. We think your car deserves better than that.
PRECISION ENGINEERED FOR PERFECT PERFORMANCE.
Each cap starts life as a solid billet of aerospace-quality 6061 aluminium.
Polished, then gloss-anodised in stunning Midnight Black to stay beautiful for year after year.
with the latest CNC 5-axis technology.
Sophisticated internal Japanese-made springing and bleed off mechanism.
OTHER PRODUCTS TO SET YOUR PULSE RACING.
ENGINE BAY DETAILS
Beautiful midnight black billet parts make the perfect yet simple upgrades for your engine bay - replacing the standard plastic parts with beautiful, reliable replacements.
A stunning new design of alloy wheels, strong, light and beautiful. Available in 8.5x19" fitment for all models.
R360 ALLOY WHEELS
DSG PADDLE BLADES
It's all about the attention to detail. Our DSG Replacements Blades are exquisite CNC-machined billet aluminium, beautiful to look at and cool to the touch.