Aussie Exhaust 3" HPC downpipe Brand Aussie Exhaust (Australia) Website Aussie-speed.com Part number Unknown Besides the power and torque gain you get from installing an open downpipe, you also save roughly 9 kg compared to the stock cat. The downpipe has an HPC coating which reduces heat radiation to the engine bay and keeps corrosion under control. Stock catalyser with beefy brackets next to the Aussie downpipe Related links Modifications - Engine Top