Ensure precise exhaust system alignment with this 3.5" aluminium donut, designed to provide a reliable seal and reduce leakage. Its compact dimensions (20 cm length, 19 cm width, 6 cm height) fit seamlessly into fabrication projects requiring exact exhaust component integration. Engineered by Aeroflow, this half-piece donut offers durability in lightweight 0.25 kg aluminium, optimizing performance without added weight.