BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

Post Reply
 
Thread Tools Search this Thread
      11-26-2022, 06:11 PM   #1
oldman_stew
Enlisted Member
7
Rep
32
Posts

Drives: 2009 BMW 128i
Join Date: Oct 2020
Location: BC CANADA

iTrader: (0)

Aftermarket Exhaust Headers: High Temp Paint?

Just curious whether anyone recommends having after market (catless) headers painted to reduce temperature in the engine bay? Or just run as is.

If so, Im curious what route to go. Not sure If I have a local shop that can ceramic paint both the inside/outside of the headers-would just the outside suffice?

Any other better/comparable options?

Thanks in advance.
Attached Images
 

Last edited by oldman_stew; 11-27-2022 at 02:48 AM..
Appreciate 0
      11-29-2022, 04:29 PM   #2
desertman123
E82 Mudflap Ambassador
desertman123's Avatar
United_States
2163
Rep
2,211
Posts

Drives: '08 128i
Join Date: May 2016
Location: Orlando, FL

iTrader: (0)

Garage List
1992 Honda Beat  [9.50]
2008 BMW 128i  [10.00]
2014 BMW 528i  [10.00]
I would recommend that yes. I just bought some ceramic header primer and paint from Autozone and used that. Worked decently, can't comment on engine bay temps because I don't have the before results, or uncoated headers to test, but anything helps. I only coated the exterior - doing the interior will definitely help too but I didn't have the tools/knowledge to properly do it.

See if anyone locally is offering Cerakote. Seems to be the hottest new product on the block as far as coatings go - I've seen exhaust headers done, piston tops, guns, etc. The Cerakote on my Ruger has been very strong.

What's more important though is your O2 sensor placement. Having your primary O2s on cyls 2 and 5 is gonna negatively impact performance. If you have header like this, either return them and get proper ones, have an exhaust shop move the bungs, or put the primary O2 sensors after the 3-way merge, and leave the secondary O2s disconnected (not like they'll be doing much with the tune disabling them)
Attached Images
 
__________________

My 2008 128i - Sparkling Graphite/Beige - Sport pkg - 6MT - Click me!
Parents' 2014 528i - Mineral White/Ivory White - fully loaded
Instagram @Andreys_128i
Appreciate 0
      12-01-2022, 03:30 AM   #3
oldman_stew
Enlisted Member
7
Rep
32
Posts

Drives: 2009 BMW 128i
Join Date: Oct 2020
Location: BC CANADA

iTrader: (0)

Quote:
Originally Posted by desertman123 View Post
I would recommend that yes. I just bought some ceramic header primer and paint from Autozone and used that. Worked decently, can't comment on engine bay temps because I don't have the before results, or uncoated headers to test, but anything helps. I only coated the exterior - doing the interior will definitely help too but I didn't have the tools/knowledge to properly do it.

See if anyone locally is offering Cerakote. Seems to be the hottest new product on the block as far as coatings go - I've seen exhaust headers done, piston tops, guns, etc. The Cerakote on my Ruger has been very strong.

What's more important though is your O2 sensor placement. Having your primary O2s on cyls 2 and 5 is gonna negatively impact performance. If you have header like this, either return them and get proper ones, have an exhaust shop move the bungs, or put the primary O2 sensors after the 3-way merge, and leave the secondary O2s disconnected (not like they'll be doing much with the tune disabling them)
Thanks for the info!

The O2 sensor placement especially. There is this version as well. But the possibility of getting the wrong ones scares me a bit
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 06:10 AM.




1addicts
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2023, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST