PQY LS Throttle Body Bypass Hose Kit – Aluminum Crossover for GM LS Engines

Upgrade your LS cooling with the PQY LS Throttle Body Bypass Hose Kit

Designed for all GM LS series engines, the PQY kit provides a dedicated coolant crossover path around the throttle body and toward the steam port area. Built to endure high-heat environments, this aluminum fabrication supports a cleaner, more organized coolant route while you push the engine harder or enjoy longer drives.

Key components are joined by a steel-braided hose, ports with O-rings, plugs with O-rings, a sealing tape, and mounting hardware. The kit is configured for flexible installation options and is compatible with factory head bolts or ARP 12-point head studs, giving you a versatile upgrade path for different builds.

What you get and how it works

• Application: Suitable for all GM LS Series engines (LSX, LS1, LM7, LR4, LQ4, LS6, L59, LQ9, LM4, and more). Not compatible with FAST 102 intake manifolds.
• Performance: Aims to increase coolant flow in the block, helping to manage engine temperatures and support more even cylinder cooling under load.
• Material: Heavy-duty aluminum construction for strength and heat resistance.
• Ease of use: Installable from the front or rear of the cylinder heads and compatible with factory head bolts or ARP 12-point head studs.
• Package contents: 1 steel braided hose; 2 coolant ports with O-rings; 2 plugs with O-rings; 1 thread seal tape; 4 bolts.

Real-world use and benefits

• Realistic driving scenarios: In street or track environments, the kit can help streamline coolant routing around the throttle body for potentially more consistent temps during spirited driving.
• Reliability and durability: Aluminum construction combined with a steel braided hose supports long-term durability in demanding heat conditions.
• Installation flexibility: Front- or rear-mounted options and compatibility with standard bolts or ARP studs provide adaptable fitment for various LS builds.
• Comprehensive package: A complete set with ports, plugs, tape, and mounting hardware reduces the need for extra parts during setup.

Quality and notes

Every component is selected to meet typical LS upgrade expectations, with a focus on reliable sealing and easy retention of coolant flow paths. A clear compatibility note reminds you of the FAST 102 manifold limitation to avoid mismatches during planning. This kit offers a smart, non-mandatory upgrade path for enthusiasts seeking potential improvements in cooling flow and heat management without promising guaranteed outcomes.