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Technical Topics B58 6-Cylinder Turbo Engine / Drivetrain / Exhaust Modifications F30 B58 Downpipe Compatible with G20 b58?

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      01-18-2020, 02:45 AM   #1
chris930
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F30 B58 Downpipe Compatible with G20 b58?

Hey everyone, I have my old catless downpipe from my 340i. I just purchased the m340i and was wondering if its the same fitment. I cant find any evidence that would tell me otherwise.
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      01-18-2020, 05:33 AM   #2
john!smith
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hey.. you could ask mission performance. i guess he is also a forum member. im sure he know.
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      01-18-2020, 05:35 PM   #3
chris930
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Quote:
Originally Posted by john!smith View Post
hey.. you could ask mission performance. i guess he is also a forum member. im sure he know.
Thank you for your advice!
I decided to just try the install and it went very smoothly and it's a direct fit!

Whoever plans on using their old downpipe worry no longer! Perfect fitment with no issues
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      01-18-2020, 05:50 PM   #4
chenry
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Quote:
Originally Posted by chris930 View Post
Thank you for your advice!
I decided to just try the install and it went very smoothly and it's a direct fit!

Whoever plans on using their old downpipe worry no longer! Perfect fitment with no issues
oh wow great info - thanks!!
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      01-18-2020, 06:13 PM   #5
Preciseyyc
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Quote:
Originally Posted by chris930 View Post
Quote:
Originally Posted by john!smith View Post
hey.. you could ask mission performance. i guess he is also a forum member. im sure he know.
Thank you for your advice!
I decided to just try the install and it went very smoothly and it's a direct fit!

Whoever plans on using their old downpipe worry no longer! Perfect fitment with no issues
This is great info.
Which one do you have ? Lots of companies allegedly made a whole new one for g20
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      01-18-2020, 08:21 PM   #6
chris930
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Quote:
Originally Posted by Preciseyyc View Post
Quote:
Originally Posted by chris930 View Post
Quote:
Originally Posted by john!smith View Post
hey.. you could ask mission performance. i guess he is also a forum member. im sure he know.
Thank you for your advice!
I decided to just try the install and it went very smoothly and it's a direct fit!

Whoever plans on using their old downpipe worry no longer! Perfect fitment with no issues
This is great info.
Which one do you have ? Lots of companies allegedly made a whole new one for g20
Apparently VRSF made a new one but their pictures are identical
However the model number is not which would confuse a lot of people including myself. Installation went super smooth and o2 sensors were identical to the oem catalytic converter. 4.5 inch diameter and exact fitment to my oem midpipe.
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      01-20-2020, 10:31 AM   #7
mike@x-ph.com
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      01-20-2020, 11:07 AM   #8
john!smith
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Quote:
Originally Posted by chris930 View Post
Thank you for your advice!
I decided to just try the install and it went very smoothly and it's a direct fit!

Whoever plans on using their old downpipe worry no longer! Perfect fitment with no issues
thanks for the feedback. so we can use dp from b58 340i aswell

did you make a sound clip before and after?
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      01-20-2020, 11:06 PM   #9
chris930
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Quote:
Originally Posted by john!smith View Post
Quote:
Originally Posted by chris930 View Post
Thank you for your advice!
I decided to just try the install and it went very smoothly and it's a direct fit!

Whoever plans on using their old downpipe worry no longer! Perfect fitment with no issues
thanks for the feedback. so we can use dp from b58 340i aswell

did you make a sound clip before and after?
Exactly!
I did not :/
I'll be more than happy to record a couple cold starts and high revs with driving as well.
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      01-21-2020, 03:40 PM   #10
MG 228i
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Awesome! Hopefully I can use my CG Precision DP. Bummed about not being able to swap in my 437M
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2017 340i - ZMT, ZTR, Z11, Z08
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      01-21-2020, 06:57 PM   #11
chris930
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Originally Posted by MG 228i View Post
Awesome! Hopefully I can use my CG Precision DP. Bummed about not being able to swap in my 437M
I think it should fit just fine! I dont know why they changed the bolt pattern pretty bummed myself. I have to get rid of my wheels now.
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      01-21-2020, 09:34 PM   #12
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Quote:
Originally Posted by chris930 View Post
Quote:
Originally Posted by MG 228i View Post
Awesome! Hopefully I can use my CG Precision DP. Bummed about not being able to swap in my 437M
I think it should fit just fine! I dont know why they changed the bolt pattern pretty bummed myself. I have to get rid of my wheels now.
Same, I have some nice AG wheels too I'm now left with
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