Bought for daughter’s truck. Finally got to install it . Causeshad down shifts when stopping. Installed several times and does the same thing. Removed and issue goes away. Will not be using.
Fix the issue
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SKU:C113-539~1
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Feature:
Made of high-quality materials, lightweight, rust-proof, colorfast and durable.
Excellent after-sales product.
According to original factory specifications, it perfectly matches the original car.
Replaces old or damaged products, easy to install.
Specifics:
Condition: 100% Brand New
Manufacturer Part Number: 8E0959851C
Fitment:
For Audi A4 / S4 / Avant 2005 - 2008
For Audi TT / TTS Coupe / Roadster 2007 - 2014
For Audi R8 2007 - 2012
For Audi RS4 / Avant 2006 - 2008
For Audi TTRS Coupe / Roadster 2010 - 2014
Package Include:
1 * Switch
Shipping Information:
Delivery Time: 3-7 business days.
Free Quick Shipping.
This buck-boost module is perfect for custom power setups. Easy to adjust, stable output, and compact. Great for DIY projects that need reliable voltage control.
This buck-boost module works flawlessly for my projects. Easy to adjust, stable output, and compact design. Great for customizing power needs reliably.
The product works well. I had some issues connecting the cables and contacted customer service late at night, on a holiday. They responded and explained how to connect the cables, and everything was great. I highly recommend it.

Fits nice, easy to install. Looks great. No complaints.
grill looks amazing shipping was super fast, and seller is super friendly, second time ordering from them.
Soiled steel bumper and looks great!
Product received exactly as described. Seller has great communication throughout the whole process. Competitive price. Will look for seller again for parts in the future. Keep it up.
Perfect fitment 👌🏼 👌🏼 Very easy to install.
Perfect fit and quick delivery. Highly recommend 👌
Good quality
Perfect fit of the parts and excellent service.
Wonderful!!!
Got it today
This buck-boost module is perfect for custom power setups. Easy to adjust, stable output, and compact. Great for DIY projects that need reliable voltage control.
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Bought for daughter’s truck. Finally got to install it . Causeshad down shifts when stopping. Installed several times and does the same thing. Removed and issue goes away. Will not be using.
Great looking item well made. Easy install!!
Fix the issue
Good
Part arrived timely, not tested