I just wanted to drop a quick plug in here for JBA / Pertronix. I bought a JBA header a few years ago and went back to them well after warranty had expired with an issue (turned out to be a very rare failure - they've only had 2 or 3 in the last 7 years on these)...and the response I got from the company was amazing. Full replacement (and upgrade) on a very expensive product. They stand behind their products and are auto lovers - that's for sure! 110% satisfied with my experience with these guys - and then some. I haven't seen a company go to these lengths to satisfy a customer in a long long time.
Price: $471.00 Pros: Ceramic coating helps control heat under the hood. Noticeable difference compared to the Stainless model. The only header recommended by Chad Golen for use on his 4.6L Strokers. Cons: Cost, but you get what you pay for. Recommended? Yes
Comments: Needed to replace my stock exhaust header due to small crack/throwing P0432 code right before inspection time. Installed a Golen Engines 4.6L stroker last summer, so called Chad up to get his input. He told me that this is the only header he uses now, as all the others (Borla, Banks) have cracked too often. No regrets. Better flow is obvious. Will dyno after completion of full exhaust system and intake.