4in Low Profile Plenum Single Inlet

The SPECTRE 4in Low Profile Plenum Single Inlet (SPE-98499) is designed for builders and enthusiasts looking to enhance cold air flow into their engine's intake manifold while ensuring optimal underhood clearance. This low-profile design effectively addresses the limitations of traditional tall plenums that can interfere with hood lines and strut towers, making it ideal for various automotive applications.

The single-inlet configuration of the SPECTRE plenum allows for efficient atmospheric air intake through a consolidated entry point, which minimizes turbulence and promotes laminar flow. With a 4-inch diameter inlet opening, it provides sufficient cross-sectional area for moderate to high-flow applications. The cast construction balances durability with weight management, weighing 3.65 lbs, making it suitable for extended driving or racing sessions.

This plenum is particularly beneficial for builders working on small-block and mid-sized engine swaps, custom manifold systems, or carbureted applications where space efficiency is crucial. Its compact footprint of 7.5 x 5.5 x 13.5 inches ensures that it fits within constrained engine bays, allowing for easier accessibility and maintenance.