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Description
Go Fast Bits T9354 FITS: -GFB Diverter Valve DV+ Suits Ford / Volvo / Porsche / Borg Warner Turbos (Direct Replacement) Blow Off ValvesFurthermore, these benefits won't cost you the Earth! Rather than throwing the entire factory diverter valve system in the trash (like other manufacturer's "solutions"), the DV+ keeps what works, and replaces what doesn't. It retains the factory solenoid and ECU control to ensure simple installation and reliable operation. Installation Instructions 10% FASTER OPENING, 50% FASTER CLOSING THAN THE FACTORY DIVERTERThis Part Fits: Year Make Model Submodel
Furthermore, these benefits won't cost you the Earth! Rather than throwing the entire factory diverter valve system in the trash (like other manufacturer's "solutions"), the DV+ keeps what works, and replaces what doesn't. It retains the factory solenoid and ECU control to ensure simple installation and reliable operation.
Installation Instructions- 10% FASTER OPENING, 50% FASTER CLOSING THAN THE FACTORY DIVERTER
This Part Fits:
Year Make Model Submodel 2015-2018 Alfa Romeo 4C Base 2015 Alfa Romeo 4C Launch Edition 2015-2020 Alfa Romeo 4C Spider 2020 Alfa Romeo 4C Spider Italia 2008-2010 Chevrolet Cobalt SS 2013-2018 Ford Focus ST 2013-2015 Land Rover LR2 Base 2013-2015 Land Rover LR2 HSE 2013-2015 Land Rover LR2 HSE Lux 2015-2017 Land Rover Range Rover Evoque Autobiography 2015 Land Rover Range Rover Evoque Autobiography Dynamic 2012-2015 Land Rover Range Rover Evoque Dynamic 2016-2017 Land Rover Range Rover Evoque HSE 2016-2017 Land Rover Range Rover Evoque HSE Dynamic 2012-2015 Land Rover Range Rover Evoque Prestige 2012-2015 Land Rover Range Rover Evoque Pure 2016-2017 Land Rover Range Rover Evoque SE 2017 Land Rover Range Rover Evoque SE Dynamic 2016-2017 Land Rover Range Rover Evoque SE Premium 2008-2009 Porsche 911 GT2 2011 Porsche 911 GT2 RS 2007-2012 Porsche 911 Turbo 2011-2012 Porsche 911 Turbo S 2008-2012 Volvo C30 T5 2006-2009 Volvo C70 T5 2004-2009,2011 Volvo S40 T5 2012-2015 Volvo S60 T5 2015 Volvo S60 T5 Platinum 2015 Volvo S60 T5 Premier 2015 Volvo S60 T5 Premier Plus 2011-2015 Volvo S60 T6 2015 Volvo S60 T6 Platinum 2015 Volvo S60 T6 Polestar 2015 Volvo S60 T6 Premier Plus 2013-2015 Volvo S60 T6 R-Design 2015 Volvo S60 T6 R-Design Platinum 2005-2009 Volvo V50 T5 2015-2016 Volvo XC60 T5 2017 Volvo XC60 T5 Dynamic 2017-2018 Volvo XC60 T5 Inscription 2018 Volvo XC60 T5 Momentum 2016 Volvo XC60 T5 Platinum 2016 Volvo XC60 T5 Premier 2018 Volvo XC60 T5 R-Design
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
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4.5 ★★★★★
Based on 408 reviews
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Product Reviews
★★★★★ 4
Awesome, inexpensive alternative to name-brands!
Size: 36 sqft
Awesome. Stuck well with alcohol prep and time to let liquid flash-off. Very consistent, piece to piece. Backing peeled easily when desired. Compared to Amazon Basics, the butyl seemed a little thicker (infinitesimally) and stickier, foil was less thick than Amazon Basics. Very good value. Started with my nice car, but after completing project, sound dampened all cars in the immediate family it made such a noticeable difference in sound level and quality of music from soeakers. Recommended!
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Reviewed in the United States on October 21, 2025
★★★★★ 5
Easy to use
Size: 36 sqft, Size: 36 sqft
Very good and easy to use, made my 88 Chevy feel better
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Reviewed in the United States on June 2, 2026
★★★★★ 5
Great sound deadening material with easy installation.
Size: 36 sqft, Size: 36 sqft
This sound-deadening mat was easy to install on the roof of my Toyota FJ Cruiser. It significantly stiffened the roof and dramatically reduced the wind noise inside the vehicle caused by my roof rack and lights. I can actually carry on a conversation again without shouting while driving on the freeway.
The 36-square-foot package was enough for my application, with about three sheets left over. The tiles adhered well to the metal without any special surface preparation. I only wish I had done this sooner.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Siless Hybrid 3-in-1 - Far Exceeded my Expectations!!!
Model: SLH20025
I recently installed the Siless Hybrid 3-in-1 sound deadening mat in my vehicle, and I’m genuinely impressed. For just $80 for 25 square feet, this product delivers performance that rivals materials costing twice as much — and with far less hassle. If you're on the fence......Just buy it! You will not be disappointed.
Easy to Install: Unlike traditional sound deadening products that are stiff, sharp, and temperature-sensitive, this mat is soft, flexible, and easy to work with. I cut it cleanly with regular scissors and pressed it into tight spaces using just my fingers, so if in you don't have a roller or install tool, a good pair of scissors and your hands can get the job done. With other brands like Dynamat, the aluminum layer often leaves micro cuts on your hands and tears up your fingertips, but Siless does not due the acoustic layer being on top and above the aluminum layer that holds the butyl layer. So, it's very easy on your hands.
Even in cooler temperatures (around 50°F), I had no trouble applying it but it goes on better heated. If warm outside, I would leave the entire box out in the sun for at least 30 minutes when it's warm or heats it's very pliable and easy to mold. Make sure its where you want it because once applied it's not ever falling off. and it became even more pliable and easy to mold. No heat gun, no mess — just straightforward application.
I installed 40–50 square feet throughout the interior, covering everything except the headliner and the flooring forward of the rear seat. The difference in cabin noise is astonishing. I can turn my radio up concert loud with gut-punching bass, and from outside the car, it sounds like a factory sound system at mid volume. I was blown away by how well it contains sound — both inside out and outside in.
My exhaust is pretty aggressive and now is barely audible from inside the cabin. While driving, it almost sounds like a stock factory setup. The Siless matting actually changed the driving experience and feels refined.
If you're skeptical about sound deadening gimmicks, I get it, but this is the first product I've used and when I needed more, I went Stright to the 3 in 1 Hybrid matting and purchased it again. I love researching before buying and that's very uncommon for me to do.
Note: Proper installation is key, and it does take time and patience. But if installed correctly and in the right places, it works better previously used from paint-on sound deadening to Dynamat.
Update Nov, 2025
After using it this in 4 separate vehicles now. I feel the Siless’s 3 in 1 Hybrid has nailed it for best budget deadener that is better than dynamat extreme in performance and installation
Protip: buy a roll of 2-3” aluminum tape and tape the seams. After trimming the edges tend to very sticky between the panels. I ran a strip of aluminum tape over the seems to create a better seal and true moisture
I used it on four vehicles now and have I have not been paid to review and purchased every order myself.
3 in 1 Hybrid deadener by Siless is the best all around easy to apply sound deadner period!
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Reviewed in the United States on September 29, 2025
★★★★★ 5
Top quality
Model: SLH20025
This Siless Hybrid 3-in-1 sound deadening mat is easy to work with and feels high-quality. The butyl material is thick and pliable, making it simple to cut and fit into doors, floors, or panels.
After installation, road noise and vibrations are noticeably reduced, and it also seems to improve the overall cabin feel. No bad smell.
At 25 sq ft per roll, it’s a good value for anyone looking to dampen noise and improve car acoustics. Overall, a solid, effective option for automotive soundproofing. Used on a Fiesta ST.
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Reviewed in the United States on February 15, 2026