Turbosmart BOV Kompact Dual Port-25mm

Marsoni

M251S

$114.30

Get it in 3 business days with 1 day shipping. Friday, May 29

Turbosmart BOV Kompact Dual Port-25mmAudi A3 1. 8T 20v 1996 2003; Audi A4 1. 8T 20v 1997 2006; Audi A6 1. 8T 20v 1997 2004; Audi S3 1. 8T 20v 1999 2003; Audi TT 1. 8T 20v 1998 2006; Bentley GT Continental 2003 current; Fiat Coupe 16 20V 1993 2000; Fiat Punto GT 1993 1999; Fiat Uno Mk1 1985 1989; Fiat Uno Mk2 1989 1995; Ford XR6 BA Turbo 2002 2005; Ford XR6 BF Turbo 2005 2008; Ford XR6 FG Turbo 2008 2014; Ford Sierra Cosworth 2WD & 4WD 1986 1992; Lancia Delta HF 1. 6L 1979 1994; Lancia

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This relay has experienced failure again after just a couple of months of use. It's not the mag coil that fails but rather the contacts are of such low quality that they corrode beyond their ability to conduct power, and fast. I have had to change two of these so far and am on the third one. The seller will ship replacements but who wants to keep replacing them? I have to travel in my RV with a spare. This relay has never been exposed to the elements. It's safely mounted inside a sealed bay. Be aware of any brands that look like this, they are all the same.

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Reviewed in the United States on November 15, 2025

Verified Purchase

Dave Kulina

Grantham, US

★★★★★ 5

Works great

I added extra batteries to run a truck camper without killing my main battery and this works great. Simple to install and i have no had any problems in the pay few months and i use it every single day

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Reviewed in the United States on April 18, 2021

Verified Purchase

Amazon Customer

Massapequa, US

★★★★★ 5

Installed in my RV.

This product works well. It is somewhat difficult to mount. The contact points are a little too close together. These deficiencies are understandable given its low cost and small size.

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Reviewed in the United States on January 18, 2021

Verified Purchase

Bret Jackson

Port Orchard, US

★★★★★ 5

Best main wire for price

Size: 25 FT, Style: 0 (1/0) AWG RED

Good main wire and is accurate size and length

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Reviewed in the United States on May 18, 2026