Looking for a Downpipe

RRKnight

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The CEL came on today and is this related to JB4/downpipe setup?

Screenshot_20191009-065827_JB4 Mobile.jpg




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MA617M

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ST-AUTOSPORT

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should point out that none of the downpipes listed fit EU cars, EU cars with GPF have a vband connection on the bottom instead of a slip on fitting.

supramkvdownpipes.jpg
 

bobbybiglug

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I got the AFE catted downpipe and love it! Here's the video of our visit with AFE:
Did it trigger a CEL? I’ve been curious to know if the mini cat downpipes do enough to prevent the code from triggering.
 

supramk5

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Did it trigger a CEL? I’ve been curious to know if the mini cat downpipes do enough to prevent the code from triggering.
No CEL. The catless however will throw a CEL but can always be fixed with a tune
 

Dkstas

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Anyone get the armytrix downpipe? If so, what does the "cat simulator" look like? Just another spacer? Can't find pics of it anywhere.
 

Supra Man

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quick question for the guys with catless dp and got a tune to remove the cel light.. do you guys know if this will show up during emission time saying "disabled 02"? on my previous vehicles, i have catless dp on them and have all used spacers and never gotten a code and was told on the forums that by disabling it on the flash or after market ecu, i would fail emissions..
 

2k20HTownMKV

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No CEL. The catless however will throw a CEL but can always be fixed with a tune
Now that you have had it for a couple weeks i am just curious if this has thrown a CEL at any time? Also I am curious if you are running a tune what kind of performance numbers you are getting with the catted. I would prefer to run catted downpipe just to make my life easier with not having a CEL and from a state inspection standpoint.
 

absaifan

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A dp install will cause CEL and not all piggybacks are capable of removing it so you will need an 02 extender/ simulator/ catted extender to clear the CEL for good (I. E. jb4 can clear the CEL but it will pop back after 60 miles, repeat to clear)
Or else go for a flash tune.
 

Extreme Power House

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A dp install will cause CEL and not all piggybacks are capable of removing it so you will need an 02 extender/ simulator/ catted extender to clear the CEL for good (I. E. jb4 can clear the CEL but it will pop back after 60 miles, repeat to clear)
Or else go for a flash tune.
You are better off getting a flash tune like Bootmod3 + Downpipe for no CEL guarantee
 

2k20HTownMKV

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You are better off getting a flash tune like Bootmod3 + Downpipe for no CEL guarantee
Any difference in down pipes if i got catless or are they all the same? Is there one that is superior or inferior in your experience?
 

Haros

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Any difference in down pipes if i got catless or are they all the same? Is there one that is superior or inferior in your experience?
It’s a short metal tube that must adhere to the stock exhaust dimensions, so there is virtually no room for change outside of the CAT removal.
An full exhaust system would be the only notable exception.

That being said, I would look for seemingly quality welds and flex pipe.

Some videos claim their DPs flow “better” but that is not exactly accurate if the diameter must reduce to meet the stock exhaust.
 

Extreme Power House

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Any difference in down pipes if i got catless or are they all the same? Is there one that is superior or inferior in your experience?
Couple things to look out for when ordering a downpipe. Fitment and finish quality.

When getting a proven brand, fitment is guaranteed.

The more expensive brands will have a higher wield quality but it wont affect performance, sound or reliability when compared to cheaper proven options
 

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