HPI Savage Alloy Tune Pipe for K4.6 SAV1308R by GPM  [SAV1308R]

Replacement tune pipe for Savage K4.6

This alloy tune pipe is an RC exhaust replacement tailored to the HPI Savage family of nitro trucks. It is supplied as a full tune pipe assembly with the joint and mounting screws to match the K4.6 engine exhaust flange and typical manifold layout on Savage, Savage X and Savage XL variants.

The part is intended to deliver a steady, durable mating surface for exhaust tuning so backpressure and resonance remain consistent during setup and running. Alloy construction reduces the chance of deformation versus softer materials, and the included joint and screws help simplify maintenance and reassembly.

Installation advice: verify alignment between the engine outlet and tune pipe joint before tightening, hand-start screws to protect threads, and ensure mating surfaces are clean. After initial runs, recheck fastener tightness and joint sealing as part of routine RC upkeep.

This GPM tune pipe is supplied as an aftermarket option for Savage-series nitro setups using the K4.6 engine, offering a direct swap and component-level resilience for exhaust tuning work.