The PLM Power Driven Subaru WRX Equal Length Header with External Wastegate (2015ā2021) is engineered to deliver serious performance and reliability by converting your turbo system to an external wastegate setup for superior boost control, helping prevent boost creep and boost spikes even on stock turbo setups. Designed as a direct bolt-on replacement, this free-flowing turbo manifold mounts in the factory location and features durable 1.5" stainless steel piping to optimize heat management, improve exhaust flow, and provide the strength needed to support the turbo. Built for real-world performance and proven value, this is the header serious WRX owners choose to get true resultsādonāt settle for cheap imitations when you can run the original PLM Power Driven part.