Coolant Reservoir for 2002–2007 Subaru WRX / 2004–2016 STI Coolant Overflow Tank SPELAB Over the course of time, the Coolant Reservoir Tank can emerge as a prominent eyesore within the engine bay of your 2002–2007 Subaru WRX / 2004–2016 STI. The original plastic reservoir tends to become fragile and hazy, increasing the risk of leaks and hindering visibility of the coolant level. The SPELAB Coolant Reservoir, constructed from 6061 aircraft-grade aluminum, ensures maximum strength through TIG welding and pressure testing. Unlike factory tanks that consist of two sealed plastic pieces, our fabrication method eliminates stress, cracking, and leaks. Additionally, aluminum dissipates heat, improving system performance and longevity. It's a direct, easy-to-install replacement for your stock reservoir, requiring only basic tools and less than 30 minutes. Manufactured at SPELAB's facility for stringent quality control, every step, from cutting to welding, ensures years of trouble-free performance. Details and Specifications: Brand: SPELAB SKU: SPCS08748 Weight: 0.72 kg Type: Coolant Expansion Tank SPELAB Coolant Reservoir Tank Fit 2002–2007 Subaru WRX / 2004–2016 STI. SHIPPING: Fast Shipping Policy: The order will be dispatched within 1-2 business day, and the package will arrive within your order's estimated date. Please click Shipping Policy for more details. Easy Return Policy: Every order comes with a 14-day free return which means you don't have to pay for a return slip. Please click Return Policy for more details.