Hedman 21115 Header Reducer - Set of 2: Boost Performance and Efficiency! Review

Description says 'Includes all required flanges and gaskets'. This is a shimless kit perfect for Hedman headers. Gaskets are not included and are not required (if used with Hedman heads anyway).

This manifold had some problems, the weld was melting a few final threads, also there was some debris on the threads which I was able to remove in the end , it was a piece of dried paint or something, hedman's previous collectors were much better.

Delivery was ok but they delivered the wrong one. says nothing about having two different versions. Version with seal and version without seal. Thing is, it specifically says "supplied with all required gaskets and fittings", which is fooling me. I just had to go upstairs.

Fully suitable for bench testing with full exhaust engines for moderate noise during testing. Very small gap in the sealing surface at the weld. I sanded it with a square block and a few minutes. The sealing surface is then completely square. I used copper manifold gaskets. No leaks in 10 hours of operation.

This really needs to be described better, not at all what I thought it would be. Do you think I need to find something on Revain, then go to the manufacturer's website to check the exact product information, then go back to Revain and order? It's easier, faster, and more accurate to simply order from the manufacturer, knowing you'll get what you need and won't bog down your project over time. Better yet, go to a specialty store where there is more information than Revain has on these little…