Turbosmart Kompact recirculating bypass valve

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Lighter, smaller, better sealing and quieter than others on the market.

This little bypass valve is a tiny, lightweight little thing - great for packaging into tight spaces. But it's a quality unit that seals better than anything else we've tried. It's also quieter than most valves. We've tested it at up to 15 psi on a GT3071.

Custom made for Flyin' Miata!

1 3/8" (34mm) inlet and 3/4" (20mm) outlet with all-metal construction. Included in all new Stage 1 and Custom Spec turbo kits and Mazdaspeed complete intake kits. Includes 3 feet of 3/4" hose for hook up. Please note, this is not compatible with a Mazdaspeed Miata using a stock throttle body inlet pipe.

Intended for use as a recirculated valve. We also have a version with a larger 34mm outlet and a filter that is intended for vent to atmosphere (BOV/blow-off valve) use.

More Information
Part number 05-90125
Designed for: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2001, 2002, 2003, 2004 (non-MSM), 2005 (non-MSM), 2004-05 MSM, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 MX-5, 2017 MX-5 soft top, 2017 MX-5 RF, 2017 Fiat 124 Spider, 2018 MX-5 soft top, 2018 MX-5 RF, 2018 Fiat 124 Spider
Fits Exocet? Yes
California emissions No information at this time
Manufacturer Flyin' Miata
Proposition 65 Warning: Cancer and reproductive harm
Flyin' Miata exclusive Yes
Warranty 1 year
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