DIY Guide – Heat Wrapping your exhaust manifold
We wanted to show you how to wrap an exhaust manifold with our new Mishimoto Exhaust Wrap. The manifold we are wrapping today is a 4-1, 2 piece, Honda D16 (4 cylinder) header.
Step #1 – Cleaning and Preparation Clean off any and all dirt, oils, or anything else that may have made it’s way onto the surface. We sprayed it down with Simple Green, cleaned it, and then wiped it down with a cloth and Brakleen.
Step #2 – Starting the Wrap We started with the downpipe first. Unroll about 2 feet or so and make the first wrap. Put some zip ties on it to prevent the wrap from moving.
Step #3 – Wrapping Begin to wrap tightly around the exhaust piece while pulling on the wrap itself.
*Remember to continually pull on the wrap to keep it tight! **Make sure you over lap about a ½”**
When you get to a bend, you must pull the wrap in order to get any creases, overlaps, and folds out!
**We found it would be easier to wrap while the o2 sensor was installed. This prevented us from getting any of the wrap stuck in the threads.
Apply zip ties to hold it in place. Almost done!
Step #4 – Finishing the Wrap Take a steel tie, put it around where you started wrapping.
Now, get a buddy to help. Hold the silver piece, and pull on the black steel to tighten the tie. We used pliers to do this. Once tightened, fold the extra back over the silver piece and then push the metal “clips” down to hold everything in place.
Now repeat step #4 where the wrap ends (at the other side of the exhaust piece). Cut off the extra that’s left over.
Done the downpipe! Step #5 Now, repeat steps #1-4 for the upper piece. Remember to keep it tight! The more bends the manifold has, the more of a chance a fold, or flap can develop! We found it was easier to unroll the remaining wrap and pull it all through with each pass.
Pulling the wrap through:
Try to do as much wrapping as possible without stopping. We chose to go down runner #4, and up runner #3 and cut. Then, a separate piece going down runner #2 and coming up #1. This was the preferred method rather than wrapping each runner, then cutting when we got to the end. Not mention, you would probably run out of the steel ties, too.
Both #3 and #4 runners wrapped, and tied.
Now, begin wrapping the remaining runners of the manifold the same way.
Manifold is now done!
We then bolted the two pieces together and we were finished! Here are some pictures of the final product.
And that is how you install thermal wrap.
Thanks & Enjoy!