90 Degree Reducer Elbow 2.5in I.D. x 2.25in I.D.

The 90 Degree Reducer Elbow 2.5in I.D. x 2.25in I.D. from Vibrant Performance is a precision intake manifold and exhaust ducting component designed for custom automotive builds where stepped diameter transitions are critical. Whether you're fabricating a high-flow intake system, custom exhaust headers, or turbo piping, this reducer elbow handles the transition between larger and smaller diameter tubing with minimal turbulence. Built by a brand trusted in the performance automotive community, this fitting addresses a real problem: standard elbows force you to use uniform sizes, but many modern engine builds require diameter step-downs for optimal flow characteristics and packaging constraints.

The 90-degree orientation provides a sharp directional change while the internal reducer geometry gradually transitions from 2.5-inch inlet diameter to 2.25-inch outlet diameter, minimizing flow separation and pressure loss at the junction. This stepped-bore design is crucial for maintaining scavenging efficiency in exhaust systems and preventing air velocity degradation in intake manifolds. The compact package—weighing just 0.88 pounds with manageable overall dimensions—makes it ideal for tight engine bay configurations where space is precious. Vibrant Performance's construction ensures durability under thermal cycling and moderate boost conditions typical in naturally aspirated and lightly boosted applications.

Fabricators, tuners, and serious DIY mechanics benefit most from this reducer elbow when custom-building intake tracts, exhaust systems, or intercooler piping that requires specific sizing sequences. It's particularly valuable in LS engine swaps, small-block Chevy builds, and Ford modular engine projects where aftermarket manifolds don't quite fit your intake runner diameter strategy. Installation requires basic tube clamp or welding skills, and compatibility with your tubing diameter is straightforward—verify that your upstream section is 2.5-inch I.D. and your downstream is 2.25-inch I.D. This fitting works with both mandrel-bent 304 stainless steel tubing and mild steel options, though matching material composition is recommended for longevity.