Supersprint knows what they are doing. They recently posted a comparison of their S85 V10 header design to an unnamed competitor. We wish they named the competitor but it is understandable that by doing so it could be misinterpreted as unprofessional or taking direct shots. Check out their design comparison and comments below. Additionally, take a look at the Evolve Automotive S85 V10 headers to compare and Evolve's explanation of their engineering choices in their design. Supersprint does not provide as much data as Evolve regarding their S85 V10 header performance.
Recently there have been some requests and comparisons between our M5 E60/61 / M6 E63/64 V10 headers and what our competitors are offering. So here's a visual comparison between our 789301 and an example of what's on the market.
Here's our 789301. Pipe routing and collector details. The primary pipes are separated to allow different thermal expansion without mechanical stress. The spring loaded flange and sealing rings avoid leaks. The perfectly smooth 5 into 1 collectors merge the gas glows in a linear, optimal way
Here's a competitor's headers set. It's a 4 into 1 design adapted to a 5 cylinder engine, with the 5th pipe plugged in the middle of the collector. All the pipes are welded toghether, which can cause failure of the welding with heat. This can cause an expensive repair job! Also notice the pipe routing is not optimal.
And here's the detail of the competitor's manifold collector, inside. The pipes stop abruptly, no smooth merging, a lot of flow interference and an irregular shaped centre hole.
For comparison here's a close up of our 5 into 1 collector with the centre piramidal diffuser that merge the flows in a linear and efficient way into the main outlet.
A different view, where you can see the spring loaded flange that keeps the sealing rings (made in graphite and pressed metal mesh) into place, to avoid leaks. They are also cheaply and quickly replacable!