Our Aluminium 45° Elbow Pipes are lightweight bends for intake and intercooler plumbing. Offered in popular diameters (around 35–57 mm, with some 2" and 2.25" options) and a typical 600 mm leg length—plus selected 450 mm variants—they help you route cleanly in tight bays. Aluminium reduces weight while providing tidy, corrosion-resistant cold-side pipework.
Net price: 16 €
Net price: 17 €
Brief summary & key benefits
Aluminium 45° Elbow Pipes are staple cold-side components that deliver a moderate direction change with minimal pressure loss. A 45° bend often packages neatly while keeping air velocity healthy, making it a favourite between the turbo, intercooler and throttle body. Typical options span ~35–57 mm diameters with around 600 mm legs (plus selected 450 mm pieces). Lightweight aluminium lowers mass on brackets and maintains a clean, corrosion-resistant appearance.
Technical Basics
These elbows are intended for intake and intercooler plumbing, not for exhaust heat. Compared with a 90°, a 45° bend reduces turbulence; compared with stacking smaller angles, it reduces joint count. Common nominal sizes include 35 mm, 45 mm, 51 mm and 57 mm, with some items labelled 2" or 2.25". Legs are typically 600 mm, with a few 450 mm variants for tight packaging. Pair with silicone couplers and quality stainless clamps to avoid leaks and maintain durability.
Aluminium’s high thermal conductivity helps shed heat after the intercooler, while its low density cuts weight. Avoid direct aluminium–steel contact in the same joint to minimise galvanic effects; where dissimilar materials must meet, isolate with silicone/EPDM. Always verify actual outside diameter—brand-to-brand tolerances can differ slightly even at the same nominal size.
Selection Criteria
Diameter: match hardware stubs on the turbo, intercooler and throttle body. Undersizing restricts flow; oversizing can reduce air velocity. Leg length: choose the standard 600 mm for generous trimming freedom or 450 mm where space is limited. Wall gauge: light gauges suit most cold-side runs; go heavier for long unsupported spans or harsh use. Bend strategy: two 45° elbows with a short straight can substitute for a smoother 90° when packaging allows.
Companion parts: straight aluminium tubes, silicone elbows and straight joiners of matching OD, stainless clamps (T-bolt or W-series), hangers and isolation mounts. Where pipes run close to panels or looms, add heat shielding and chafe protection.
Installation & Maintenance
Mark cut points accurately, then deburr and degrease. Add a light chamfer to protect silicone during assembly. Tighten clamps evenly—excess torque may ovalise the tube. If welding aluminium, account for higher thermal expansion and conductivity; use solid fixturing and controlled heat input. After assembly, pressure- or smoke-test for leaks and re-torque clamps after initial heat cycles. Periodically check mounts, shielding and potential contact points.
FAQ
Can I use these on the exhaust?
No—use stainless steel for hot sections; aluminium elbows are for cold-side plumbing.
Which sizes are available?
Commonly around 35–57 mm, with some 2"/2.25" options.
What leg lengths do they have?
Typically 600 mm, plus selected 450 mm variants.
Clamp or weld?
Cold-side systems usually use silicone couplers and clamps; weld only when fixed geometry is required.
Why is my joint leaking?
Often burrs, angled cuts or undersized/low-quality clamps—re-cut square, deburr and tighten evenly.
