SKU: 25646991277

BOV Kompact PlumBack - Shortie - Mercedes A45 AMG

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Description

BOV Kompact PlumBack - Shortie - Mercedes A45 AMGBOV Kompact PlumBack Shortie Mercedes A45 AMG The BOV Kompact PlumBack Shortie Mercedes A45 AMG is a genuine Turbosmart blow off valve engineered to improve boost response, throttle lift control and reliability in high performance turbo applications. This product is supplied with the technical notes: Bolt On Upgrade for Factory Diverter Valve Adjustable Product Various Springs Available Seperately. Spring Pre Fitted based on OE Application (Engine

BOV Kompact PlumBack - Shortie - Mercedes A45 AMG

The BOV Kompact PlumBack - Shortie - Mercedes A45 AMG is a genuine Turbosmart blow off valve engineered to improve boost response, throttle lift control and reliability in high-performance turbo applications. This product is supplied with the technical notes: Bolt-On Upgrade for Factory Diverter Valve Adjustable Product - Various Springs Available Seperately. Spring Pre-Fitted based on OE Application (Engine Vacuum).

Despite the AMG four's high boost levels, these vehicles do not have a bypass valve fitted from the factory. This is likely because the plastic valves typically found in OEM setups would not be capable of handling the A45's 26PSI of boost without failing prematurely. As a result, the AMG 45 models suffer from a significant compressor surge. Compressor surge, combined with the A45's high boost pressures, equals a recipe for disaster for the bearings inside the turbocharger.

Enter Turbosmart's Kompact Shortie Blow-Off Valve for the A 45, CLA 45 and GLA 45 AMG. This high-performance billet aluminium valve bolts straight onto the compressor cover of the AMG's turbocharger. With both Dual Port and Plumb Back variants available, owners can choose between the classic blow-off valve sound afforded by the Dual Port's 50-50 split between a recirculating and vent-to-atmosphere operation or the quieter OEM-like operation of the Plumb Back. Both variants dramatically reduce the compressor surge experienced by the A45 in standard form.

The Shortie's billet construction and high-performance piston design, which eliminates the need for an O-ring to seal the body of the blow-off valve against the piston due to excellent machining tolerances, means the valve has no problem coping with the boost pressures produced by the AMG's turbo, ensuring no leaks and extreme durability - even if you decide to turn the boost up.

The VR03 Kompact Shortie Kit for the A45, CLA45 and GLA45 AMG includes a Boost Reference Adapter that allows the blow-off valve to respond to engine vacuum instantly, providing greater control compared to electronically operated valves. This is possible by allowing the valve to access a manifold pressure reference in the AMG's otherwise closed system - all without any destructive methods, such as tapping into the intake manifold. The Boost Reference Adapter offers two pressure ports, allowing you to run a second manifold pressure-operated accessory, such as a boost gauge.

Important Notes

Bolt-On Upgrade for Factory Diverter Valve Adjustable Product - Various Springs Available Seperately. Spring Pre-Fitted based on OE Application (Engine Vacuum)

Why Buy from Torque Lab?

Torque Lab supplies genuine performance parts for serious street and track builds across Europe. We focus on technically correct fitment, strong SEO-friendly product support and proven brands trusted in the tuning scene.

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 25646991277

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samiam46
San Leandro, US
★★★★★ 5
Very comfortable
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My daughter really really loves these. She said that they are the most comfortable shoes she has ever had.
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Reviewed in the United States on May 20, 2026
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Daughter loves them. Very comfortable.
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Kim
Birmingham, US
★★★★★ 5
Cute shoes
Size: 2.5 Little Kid, Color: Lavendar
Cute, easy to slip on, and my very particular daughter actually wears them - which is saying a lot.
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Linda Wilson
Pawtucket, US
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Her go to pair!
Size: 13 Little Kid, Color: Lavendar
Good quality shoes and she loves them! Slips her foot right in! Her go to pair !
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Reviewed in the United States on May 15, 2026
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Janie L Bobst
Birmingham, US
★★★★★ 5
It’s a perfect shoe without the correct width it needed to be wider
Size: 5 Big Kid, Color: Lavendar
The app suggested a 6.5 but I needed it in wide and it was not an option. I had to send them back because they were too tight!
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Reviewed in the United States on April 11, 2026

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