Mishimoto Hot Side Pipe Boot Kit 17-19 GM 6.6L L5P Wrinkle

Improve power and efficiency with the Mishimoto Hot Side Pipe Boot Kit 17-19 GM 6.6L L5P Wrinkle, delivering a measurable reduction in hot-side intake restriction for more consistent boost response and improved engine breathing.

This kit replaces the factory hot-side intercooler pipe assembly that, as supplied by the OEM, uses a narrow 2.5" diameter section and tight bends plus a built-in resonator that constrict airflow and reduce efficiency. By addressing these specific sources of restriction, the Mishimoto solution helps the 2017–2019 Chevrolet and GMC 6.6L Duramax L5P breathe more freely under load.

Engineered for functionality: The design focuses on alleviating the choke points in the factory plumbing—specifically the limited 2.5" section, restrictive routing, and internal resonator—which matter because lowered airflow resistance contributes directly to steadier turbo operation and throttle response.

Brand reliability: Mishimoto is cited here as the supplier; the kit leverages the brand’s experience in intercooling and intake plumbing to provide a targeted upgrade for L5P owners seeking a practical performance improvement without speculative claims.

Application note: This product is intended for 2017–2019 Chevrolet and GMC vehicles equipped with the 6.6L Duramax L5P engine and addresses hot-side intercooler piping restrictions present in the factory configuration.