Performance manifolds, systems and sport boxes available in mild steel or 304 stainless. Please note we produce three primariy sizes for the Z16XER / Z18XER, 1 1/2", 1 5/8" and 1 3/4.
This is one has 1 1/2 primaries. We tailor make the exit diameter to suit the system you have, either 2", 2 1/4" or 2 1/2.
4 into 1 race manifold. Mandrel bent 1 1/2 primaries.
2" collector ideal for a 2" system. CNC lambda boss for probe. We believe our Astra H race manifolds are a good value, UK made, easy fit product that gives a louder sound and more power. We powder coat all of our products in our 1200 range and have done so for 45 years. Even though we bake our exhausts at approximately 200 degrees in an oven that paint stays on most exhaust systems but can burn off the manifolds.
The paint is purely for cosmetic purposes and does not affect the performance of the manifold in any way. Please feel free to ask any questions.