layzie12g

What are you guys using to seal the connection at the collector? I have MBH long tubes and have never been able to get the clamps to seal. There has always been quite a large leak on both sides and I have the exhaust pushed in as far as it can go. I just saw people are using an exhaust putty, but it sounds like it turns in to JB Weld. Any tips would be appreciated. The right way would be to use V bands, but I do not want to remove the headers.

bentz69

I have weistec headers which Im told are the same as MBH just rebranded. I havent had any leaks using the clamps that came with the headers. There were slight leaks when they were tightened by hand but after I hit them with a impact wrench it sealed up fine

layzie12g

After I installed mine I went to re-tighten them and ended up breaking one of the through bolts. I'm going to take a look again tomorrow and decide what to do. Also I'm going to have an H added in to my straight pipe instead of an X. It will be an easier process.

bentz69

Cant say with certainty but I believe I used permatex cooper also.

https://www.amazon.com/dp/B0002UEOPA/ref=cm_sw_r_other_apa_PM40AbMEQJ6E5

layzie12g

I'll give that a try tomorrow.

AMG-SVT-FTW

Get it nice and clean with some brake cleaner etc, and put a coat of the high-temp Permatex on both surfaces. Allow it to fully dry and you should be good. Pretty easy to dissemble as well when needed.

SuckaGDog

layzie12g

The fact that is a slip fit is going to smear the hell out of the sealant. I was also thinking about using it where the clamp goes.