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

Precision alloy tune pipe for Savage K4.6

This alloy tune pipe is engineered as a replaceable exhaust assembly for the HPI Savage family of nitro trucks. The unit includes the mating joint and mounting screws, designed to align with the K4.6 engine exhaust flange and the standard manifold layout found on Savage, Savage X and Savage XL variants.

Functionally the part provides a stable mating surface for exhaust tuning, helping preserve consistent backpressure and resonance behavior during tuning and running. The alloy construction reduces deformation risk versus softer materials, and the supplied joint and screws simplify service and reassembly while maintaining part stability under load.

Service and fitting guidance: verify outlet-to-joint alignment before final torque, hand-start all screws to avoid cross-threading, and remove any gasket debris from mating faces. Perform a fastener and seal inspection after initial runs to confirm correct installation and long-term reliability.

Offered as an aftermarket replacement for Savage chassis using the K4.6 engine layout, this tune pipe delivers a straightforward swap and component-level robustness for exhaust tuning and service tasks.