I recently ordered and installed a Racing Beat 4-1 exhaust header for my '94 Miata to replace the rusting and dilapidated original manifold. However, as many have noted on Miata.net forums, there was a significant increase in heat throughout the engine bay as this is a stainless steel header and offers no ceramic coating. After a brief ride around the city I could already smell the nearby heater/coolant hoses getting a bit too hot! I wrapped the hoses with header wrap, and that seems to have solved that issue. But the excessive heat output on the driver's side of the engine bay was not pleasant - I couldn't touch the hood or anything in the engine bay after a drive.

After a bit of research (miata.net forums again) and reader testimony on your TDR Header Blanket I decided to give it a try. I ordered one from Good-Win Racing last week and it arrived yesterday. After 15 minutes (on a cold engine) everything was ready to go! I went out for a spirited 40-minute ride. When I returned I could tell the difference before I even got out of the car. I touched the hood - it was the same temp as the rest of the car, except for a small area that was just slightly warm (directly over the header). Upon opening the hood, I knew I'd made the right choice. I could touch the stock air intake, camshaft cover, etc. Nearly all surfaces were cool enough that I could touch them briefly - without the TDR Header Blanket I would have left melted skin!!

I wanted to personally thank you for (a) recognizing the need for a product like this in the Miata aftermarket and (b) for creating a very affordable and great-performing product! I knew it would help, but I didn't expect such a dramatic difference. The RB 4-1 headerÊhas been "tamed"!!

In my opinion, RB should just sell your Header Blanket with every header purchase - customers will definitely be satisfied then! Have you approached RB or your distributors (Moss, Good-Win, etc.) with this concept? In hindsight, I realize I should have just ordered a Header Blanket with the original header order anyway!

Sincerely,
Jeff C.
St. Louis, MO.