Racing Downpipes with Heat Shield Wrapping For McLaren 540C 570S 570GT (2016-2021) 3.8LMaximize Exhaust Flow & Thermal Management: McLaren 540C, 570S, 570GT M838T 3. 8L Who Is This For? Designed specifically for McLaren owners running the M838T Twin Turbo V8 who demand aggressive track performance, reduced turbo lag, and superior engine bay heat management during high performance driving. The Mid Engine Heat Trap: In the compact engine bay of the McLaren Sports Series, the factory catalytic converters act as massive heat sinks, choking