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Discussion Starter #1
The 2019 Ford Mustang did not replace the downpipe, but only replaced the rear exhaust system. Can the intercooler, Cobb cold air intake, be upgraded to stage 3?
 

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COBB stage 3 requires a downpipe, intake, exhaust, and intercooler. Its recommended to run all COBB parts unless you stick with the stage 1 map. I ran the stage 3 map with non COBB parts and the car ran fine excet it was a little rich on the tune.
 

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Discussion Starter #3
COBB stage 3 requires a downpipe, intake, exhaust, and intercooler. Its recommended to run all COBB parts unless you stick with the stage 1 map. I ran the stage 3 map with non COBB parts and the car ran fine excet it was a little rich on the tune.


Thank you, I have installed the intake, exhaust and intercooler, but not the downpipe. According to some regulations, I did not install downpipes. I have been using the second stage now. I just want to know if the downpipe is not installed, but the air inlet, exhaust and intercooler are installed. Can I use the third stage? Thank you!
 

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Thank you, I have installed the intake, exhaust and intercooler, but not the downpipe. According to some regulations, I did not install downpipes. I have been using the second stage now. I just want to know if the downpipe is not installed, but the air inlet, exhaust and intercooler are installed. Can I use the third stage? Thank you!
No you can’t using the stock downpipe on stage 3 will at best destroy your catalytic converter or at worst possibly create pressure issues which could destroy your engine and or turbo. If you go as far to support stage 3 you might as well spend the $200 on a pro tune it’s night and day plus safer.
 

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No you can’t using the stock downpipe on stage 3 will at best destroy your catalytic converter or at worst possibly create pressure issues which could destroy your engine and or turbo. If you go as far to support stage 3 you might as well spend the $200 on a pro tune it’s night and day plus safer.
alright, thank you very much!
 
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