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Dyno results on catted downpipe on FL5 (with tune)?

Backmarker

Member
First Name
Phillip
Joined
May 16, 2023
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Location
Richmond, Va
Vehicle(s)
2023 FL5
Hi folks,

Currently stock and playing around with the TSP Stage 1 and Phearable Stage 2 tunes.

The current wisdom seems to be the biggest bang for the buck for next mods is downpipe and intercooler. However, I have heard different things from tuners around the actual benefit of a catted downpipe.

Does anyone have actual dyno results of adding a catted downpipe on a tuned (hondata, etc.) car? Basically stock with tune vs with downpipe With tune.
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ssheff55

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First Name
Stacey
Joined
Jul 18, 2022
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Bristol, TN
Vehicle(s)
2019 WRX
Hi folks,

Currently stock and playing around with the TSP Stage 1 and Phearable Stage 2 tunes.

The current wisdom seems to be the biggest bang for the buck for next mods is downpipe and intercooler. However, I have heard different things from tuners around the actual benefit of a catted downpipe.

Does anyone have actual dyno results of adding a catted downpipe on a tuned (hondata, etc.) car? Basically stock with tune vs with downpipe With tune.
I can’t speak to specific numbers, but here are my thoughts. I tuned my completely stock car with TSP stage 1 tune, and it made a massive difference. Followed that up a month later with the TSP downpipe, and it was another solid increase. Can’t speak to the increase number wise, but the driving experience got better for sure 👍🏽
 

ne_typer

Senior Member
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Feb 10, 2023
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Location
Massachusetts
Vehicle(s)
BB FL5
My guess is that it’ll gain you 10-15WHP. Whether that’s worth it is up to you…
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