Automobiles in the 21st century have replaced the more conventional throttle cable technology for an ECM (Electronic Control Module) that translates pedal travel into electronic signals in order to provide power to the wheels. The ETC system (Electronic Throttle Control), also known as drive-by-wire, has the unfortunate downside of delayed throttle response and subdued acceleration, creating problems in certain circumstances such as up-hill starts, quick gear changes, overtaking, etc. The Sprint Booster aims to overcome this throttle response delay for ETC-equipped vehicles, providing crisp on-tap acceleration at the driver's disposal. For vehicles with electronic control (ETC) systems, or drive by wire, this device plugs into the OE connector located behind the accelerator pedal. It's a simple installation, requiring no cutting of any wires or interference of the automobile's electronics. It does not affect other systems such as electronic injection, ABS, etc. The three main acceleration modes can be switched by pressing the main button. When the LED is off, the Sprint Booster is deactivated, and the car has factory settings. In Sport Mode, the LED is green, and throttle response is improved by up to 30%. With the red colored LED, the Sprint Booster is in Race Mode, and it improves response by up to 60%.Each acceleration mode comes with nine programs. Select 1-9 in SPORT mode and 1-9 in RACE mode, with '1' being the least aggressive program and '9' the most aggressive.
Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
2016-2020	Audi	A4	Premium
2016-2020	Audi	A4	Premium Plus
2017-2020	Audi	A4	Prestige
2019	Audi	A4	Titanium
2017-2025	Audi	A4 allroad	Premium
2017-2025	Audi	A4 allroad	Premium Plus
2017-2025	Audi	A4 allroad	Prestige
2016-2025	Audi	A4 Quattro	Premium
2016-2025	Audi	A4 Quattro	Premium Plus
2017-2025	Audi	A4 Quattro	Prestige
2019-2020	Audi	A4 Quattro	Ultra sport
2016,2018-2024	Audi	A5 Quattro	Premium
2016,2018-2024	Audi	A5 Quattro	Premium Plus
2018-2024	Audi	A5 Quattro	Prestige
2017	Audi	A5 Quattro	Sport
2019-2020,2024-2025	Audi	A6 Quattro	Premium
2019-2020,2024-2025	Audi	A6 Quattro	Premium Plus
2019-2025	Audi	A7 Sportback	Premium
2019-2025	Audi	A7 Sportback	Premium Plus
2019-2025	Audi	A7 Sportback	Prestige
2021-2023	Audi	RS6 Avant	Base
2025	Audi	RS6 Avant	GT
2024-2025	Audi	RS6 Avant	Performance
2016-2018	Audi	RS7	Base
2016-2018	Audi	RS7	Performance
2021-2023	Audi	RS7 Sportback	Base
2024-2025	Audi	RS7 Sportback	Performance
2019-2025	Audi	S4	Premium
2016,2018-2025	Audi	S4	Premium Plus
2016,2018-2025	Audi	S4	Prestige
2019-2024	Audi	S5	Premium
2018-2024	Audi	S5	Premium Plus
2018-2024	Audi	S5	Prestige
2020-2024	Audi	S5 Sportback	Premium
2018-2024	Audi	S5 Sportback	Premium Plus
2018-2024	Audi	S5 Sportback	Prestige
2023-2025	Audi	S6	Premium
2020-2025	Audi	S6	Premium Plus
2020-2025	Audi	S6	Prestige

Shipping Overview

What is your shipping cutoff time? 

Cutoff time for in stock items is 2PM CST for items shipping with UPS.  USPS cutoff time is 10AM CST.   If you need a product by a specific date, please call us to find out if its possible to meet your deadline before ordering. Please be aware that there may be discrepancies with shipping calculators or “in stock” status of a product. 

 

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Orders over $149 qualify for free shipping within the lower 48 United States. We will select the most economical shipping option for our free shipping option.  If you'd like expedited service, please select that option during checkout.  Unfortunately, shipping to AK/HI or International we cannot offer free shipping, due to the extra costs incurred.  

 

How long will it take to get my stuff? 

Most in stock orders will ship the same day, if ordered before our cutoff times.  Custom items will ship when they are completed, please inquire for timelines on custom items (as this will vary).  We are located centrally in the US (St Louis MO) - so most items arrive within 2-4 days to the lower 48 US.  You will receive a tracking number when your item ships, allowing you to keep track of it at all times.  

 

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Refund / Exchanges

We have a 30-day return policy on non custom items, which means you have 30 days after receiving your item to request a return. 

To be eligible for a return, your item must be in the same condition that you received it, uninstalled and in its original packaging. You’ll also need the receipt or proof of purchase. 

To start a return, you can contact us at sales@retroshop.us. If your return is accepted, we’ll send you instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted. 

You can always contact us for any return question at sales@retroshop.us.

Damages and issues 
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

Restocking Fees 
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Unfortunately, we cannot accept returns on sale items or gift cards.

Exchanges 
Please contact us for any exchanges at sales@retroshop.us.

Shipping Charges
Shipping charges are not refunded.  If you selected our free shipping option, the amount we paid to ship the item to you will be deducted from your return.

Refunds 
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.