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I'm thinking about installing a blow off valve on my 2018 civic hatchback. Has anyone done this yet? How was the install process? It doesn't look like there is a ton of room under the hood for aftermarket parts. Was it worth it with a turbo this small?

 
Rep Power: 511

Don't do it. The air that goes through the air bypass valve is metered air. Venting it off to atmosphere will mess with fuel trims and thus, performance.

There's a BOV plate from booba racing that sold well because people wanted the "PSSSSH!" sound (admittedly, I wanted one, too, until I researched it). People ended up taking it off and can't sell it for squat now.

 
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hmm..... ok that's good to know. I know It'll wear down the cats faster than stock but I'm planning on having them removed and get it retuned anyway

 
Rep Power: 511

so far, looks like the ktuner for our cars is the way to go. Hondata has more of a reputation in the Honda world, but the ktuner seems to be putting out better results with more features for a far lower price.

Hondata: $650
KTuner V1: $450
Ktuner V2: $650, includes 7" touchscreen console so you don't need a laptop to tune. Also doubles as extra gauges.

 
Rep Power: 518

Good way to void your warranty.

 
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Lol I guess so. Mind you it' not difficult to put it back to stock of need be