The Stack That Means Business This 48-inch (1220mm) Mitre Cut stack isn’t trying to be subtle. The sharp 45-degree angle cut at the top creates an aggressive, edgy appearance that gives your truck a classic big-rig silhouette. If you want your rig to look like it’s ready to work, this is the stack that delivers. The 8-inch outside diameter runs non-reduced from bottom to top—no diameter changes, no flow restrictions. Your diesel engine gets a straight shot to evacuate exhaust without fighting through transitions or bottlenecks. This matters when you’re running a high-output engine that generates serious exhaust volume. The consistent 8-inch bore allows for enhanced airflow, which can lead to improved engine performance, particularly in heavy-duty applications. Key Specs: 8-inch outside diameter (non-reduced) 48 inches (1220mm) total length Plain inlet design 45-degree Mitre Cut top Premium chrome finish with no polishing marks