[billspreston]

^ Are you going to drop the exhaust to paint it or are you going to spray with the exhaust on the car? I want to do this as well.

[aerokubectl]

Painted muffler for a few days...holding up real well looks a million times better

[Shekels]

My paint is occasionally flaking off in small patches, so I keep re-applying. Going to have to try a different product, with a higher Temp rating.

[Al1969]

Originally Posted by billspreston

^ Are you going to drop the exhaust to paint it or are you going to spray with the exhaust on the car? I want to do this as well.

BMW will do it for me... just spray on exhaust without dropping it

Will post some pictures next week when i collect my new baby M

[ChrisK]

Originally Posted by Shekels

My paint is occasionally flaking off in small patches, so I keep re-applying. Going to have to try a different product, with a higher Temp rating.

What paint did you use?

[b18flip]

Besides the paint, how are you guys prepping the metal? Por 15? Etc?

[Hooptie157]

Originally Posted by billspreston

^ Are you going to drop the exhaust to paint it or are you going to spray with the exhaust on the car? I want to do this as well.

I’m dropping it. For those who are flaking did you do the curing process? I hear if you skip that it will flake. I’m also throwing down primer on this thing. I’ve seen vht properly applied on headers and they never flaked.

[M Fifty]

Were those headers galvanised? Your muffler appears be.

[Shekels]

Originally Posted by ChrisK

What paint did you use?

I don't have the can here with me, it was from an autoparts shop specifically for exhaust manifolds upto 600c. Maybe it's not a great quality one, or maybe I needed to prep the exhaust first (I did nothing other than make sure the surface was dry).

The paint is holding up fine on the sides and bottom, it's just small areas flake off around the central area.

I'll try a different brand, probably from Amazon if it continues.

[nidfix]

Fine for mine.
I could not stand watching it. It was done before delivery.

[Project_F87]

Originally Posted by Hooptie157

What if they just used black steel?

There's no such thing as black steel, only steel that has not been galvanized which has the dark iron oxide layer that forms over time; but these mufflers must be galvanized for protection.

[Tag]

Originally Posted by Shekels

My paint is occasionally flaking off in small patches, so I keep re-applying. Going to have to try a different product, with a higher Temp rating.

Did you prep the surface before spraying? Also noticed you didn't take the tips off and paint the small area behind them.

[Shekels]

Originally Posted by Tag

Did you prep the surface before spraying? Also noticed you didn't take the tips off and paint the small area behind them.

No I I didn’t do any prep other than make sure it was dry. I’m lazy! I left the areas above the pipes, as I didn’t want to risk over spraying the pipes. Plus the bit that bothers me most is the muffler hanging below the pipes. It still looks 90% fine, but there’s always a new small area that is about to flake off.

[cptobvious]

Originally Posted by Shekels

No I I didn't do any prep other than make sure it was dry. I'm lazy! I left the areas above the pipes, as I didn't want to risk over spraying the pipes. Plus the bit that bothers me most is the muffler hanging below the pipes. It still looks 90% fine, but there's always a new small area that is about to flake off.

Hey guys,

I painted the muffler probably something like 2 months ago and haven't had any flaking whatsoever, nor any need to re-apply.

I think I read in a previous post that someone used a paint rated up to 600C or something like that? In my own case, I used the pictured paint, and it's rated at 703-1093C. Maybe that's why some others may be experiencing flaking?

Hope this helps!

[Shekels]

Yeah mine is 600c rated. Think I need to go higher if I can find it.

[sobek305]

Originally Posted by cptobvious

Hey guys,

I painted the muffler probably something like 2 months ago and haven't had any flaking whatsoever, nor any need to re-apply.

I think I read in a previous post that someone used a paint rates up to 600C or something like that? In my own case, I used the pictured paint, and it's rated at 1300-2000C. Maybe that's why some others may be experiencing flaking?

Hope this helps!

This is also what I used, no prep just taped off the area as I was outside and didn’t want to overspray...car only had like 100 miles so it wasn’t super dirty

[ContactPatch]

Originally Posted by b18flip

Besides the paint, how are you guys prepping the metal? Por 15? Etc?

That would work fine, but you really need to use a high temp primer before the black paint is applied for good adhesion.

[ContactPatch]

Originally Posted by Shekels

No I I didn’t do any prep other than make sure it was dry. I’m lazy! I left the areas above the pipes, as I didn’t want to risk over spraying the pipes. Plus the bit that bothers me most is the muffler hanging below the pipes. It still looks 90% fine, but there’s always a new small area that is about to flake off.

Use a high temp primer first, better adhesion this way!

[Tag]

Surface contaminants like oil, tar, etc. will cause poor adhesion. IPA wipe down should be a good enough prep before spraying. Last I recall searching for high heat primer was difficult to find, honestly don't think its necessary if the muffler is galvanized as that has texture. If the exhaust is stainless then a red scuffing pad followed by IPA wipe down should work.

[Ceramic Rabbit]

Originally Posted by Hooptie157

I thought that too however there is no release date or exhaust in site.

The M performance exhaust doesn't change the size or position of the muffler.

[doughboy]

I don't know why you guys don't like the standard silencer.

It looks just great to me.

[ContactPatch]

Originally Posted by doughboy

I don't know why you guys don't like the standard silencer.

It looks just great to me.

Depends if you like looking at a giant steel scrotum, not into scrots myself.