Civic Type R "Free Flowing" DownPipe

[OsosikMedia]

Are you looking to get more power out of your 2023 Honda Civic Type R?
Installing a catless free flowing downpipe is one way to do that! A downpipe allows for increased exhaust flow, which increases engine performance. But how much power can you expect from the installation? To find out, we tested the results of installing a free flowing downpipe on our 2023 Honda Civic Type R and ran it on our Mustang Dyno. Keep reading to learn all about our dyno run results and what this could mean for your Civic Type R performance!

2023 Civic Type R Downpipe Dyno & Install video


To eliminate variables and get accurate comparisons, we put the Type R back on 91 octane and the PowerMetric Stage 0.91 tune using Hondata FlashPro.

Stock the Type R makes 270 WHP and 312 TRQ

Downpipe with PowerMetric Stage 0.91 Tune compared to Stock:

Last Dyno Plot compares the "free flowing" Downpipe with Powermetric Stage 0.91 Tune to the Stock Downpipe with Powermetric 91 Tune:

As you can see the plot the peak TRQ shows slightly less with the free flowing downpipe at around 2,500 RPM. If you look throughout the entire rev range, the new downpipe out performs the stock one. Again, this is with ZERO tuning changes. Tuning would definitely optimize this upgrade but if you're wondering what an install like this would do without tuning, here you go.

Are you curious to know what swapping out the stock intercooler to a @PRL Motorsports would do? We will be creating a thread for that as well.

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[BigBird]

Great work! Thanks for the data!!

 

[OsosikMedia]

Great work! Thanks for the data!!

Thanks for reading.

 

[jayely14]

Catless will throw CEL correct??

 

[Fresh]

I’m considering getting the PRL intercooler and front pipe, but first want to know if I do a cat-back exhaust (from whichever manufacturer), will this front pipe still work and the cat back bolt on at the downstream end of the front pipe?

Also, per jayely14, will it throw a CEL error?

 

[OsosikMedia]

Catless will throw CEL correct??

If you don't use tuning software to disable it, then yes it will eventually throw a code.

 

[OsosikMedia]

I’m considering getting the PRL intercooler and front pipe, but first want to know if I do a cat-back exhaust (from whichever manufacturer), will this front pipe still work and the cat back bolt on at the downstream end of the front pipe?

Can't answer that because it depends on the company/person who builds it. Typically companies will make it like OEM fitment.

Also, per jayely14, will it throw a CEL error?

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