Collector 2-1/4 X 4in X

The Collector 2-1/4 X 4in X exhaust collector by DYNATECH is designed for engine builders and performance enthusiasts looking to enhance exhaust flow and power delivery. This slip-on collector consolidates multiple cylinder runners into a single 4-inch outlet, making it a critical component for optimizing exhaust gas flow dynamics in various engine setups.

Featuring mandrel-bent tube construction, the Collector minimizes turbulence and maintains consistent wall thickness throughout each runner transition. The 2-1/4-inch primary tube diameter promotes optimal scavenging velocity, while the 4-inch collector outlet ensures smooth convergence of exhaust gases, reducing backpressure and improving volumetric efficiency across the RPM band.

This collector is particularly beneficial for small-block and mid-sized engine applications, where controlled exhaust velocity can lead to measurable horsepower gains and improved throttle response. It is recommended to pair the collector with a quality header set and aftermarket exhaust system tailored to your specific engine configuration for best results.