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

Alloy tune pipe for Savage K4.6 setups

This alloy tune pipe is an RC exhaust component made for the HPI Savage family of nitro trucks. It is presented as a replaceable tune pipe assembly that includes the joint and mounting screws so it fits the K4.6 engine exhaust flange and the manifold layout used on Savage, Savage X and Savage XL variants.

In use the part gives a stable mating surface for exhaust tuning, helping to preserve consistent backpressure and resonance while running. The alloy body is less prone to distortion compared with softer materials, and the included joint and screws make reassembly after maintenance or upgrades straightforward.

Installation tips: check alignment between the engine outlet and the tune pipe joint before tightening, hand-start screws to prevent cross-threading, and ensure mating surfaces are clear of gasket residue. Recheck fastener security and exhaust sealing after the first few runs as part of routine RC care.

This GPM tune pipe serves as an aftermarket replacement for Savage-series nitro layouts using the K4.6 engine, giving a simple swap and component-level durability for exhaust tuning tasks.