Downpipe Help

White Duramax

Member
Jun 25, 2008
158
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16
ohio
Does anyone know what downpipe will work with a s400 exhaust housing. IIRC the outside of the flange measures 4.6??" Also will it work with a stock dipstick or can a left side one be had?
Thanks, Raymond
 

White Duramax

Member
Jun 25, 2008
158
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16
ohio
It is a t4 housing off of an s465 charger, machined to fit an hx55. I didn't know if ppe downpipe for a gt42 would work or one for a a5k.
 

mainer

New member
Nov 11, 2008
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my s475 is a 5" downpipe but its also T6.... i think gt42's have a 5" vband but not 100%
 

sweetdiesel

That's better
Aug 6, 2006
10,390
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52
Thailand
Does anyone know what downpipe will work with a s400 exhaust housing. IIRC the outside of the flange measures 4.6??" Also will it work with a stock dipstick or can a left side one be had?
Thanks, Raymond

I just made my own 4" and I have a dipstick from Mike
A 4" is tight in there
 

durallymax

New member
Apr 26, 2008
2,756
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Under The Hood
My S400 usesthe one in PPEs GT42 kit. One for an A5K I think would work also but ATS WILL NOT seperate their kits for some reason.

I have a drivers side dipstick from mike L. I bent the stock one to get it to fit but it rubbed the downpipe and made a horrible grinding sound.
 

airmanadams88

New member
Dec 20, 2008
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you can use the PPE GT42 downpipe, the diamond eye downpipe and the ATS 4" downpipe. I got a ATS 4" downpipe from ATS...who says they wont seperate the kits!
 

turk walker

New member
Dec 16, 2006
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gillette,wyoming
I just got a ATS downpipe.
I wanted to use the new driverside dipstick tube,but Mike L. told me it would not fit with Rick's uppipes(I guess they are to BIG).
 
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