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APR R1 Diverter Valve - DV100001

APR R1 Diverter Valve - DV100001

SKU: DV100001
Regular price $204.95 USD
Regular price Sale price $204.95 USD
Sale Sold out


The APR R1 Diverter Valve is a critical performance upgrade recommended at all stages of performance as it replaces the failure prone factory unit. The R1 is designed to withstand extreme boost pressures at the highest levels of performance, while offering lightning fast response thanks to the unit's friction-free diaphragm-based design. Unlike piston based units that can stick and bind in the winter, the APR R1 is virtually maintenance free, requiring no greasing or o-ring replacements, as is common with other units. Constructed from CNC-machined billet-aluminum with a high-temperature Nomex-reinforced diaphragm, the R1 is designed to be the last DV upgrade the engine will ever need!


  • Direct replacement
  • Billet construction
  • Premium friction-free diaphragm-based design
  • No sticking or binding like pistons
  • No maintenance like pistons
  • Nomex-reinforced diaphragm
  • Fits 1 inch inlet and outlet hoses

Year Make Model Submodel Engine Size
2002 Audi A4 Quattro Le Mans 1.8L L4
2003 Volkswagen Golf GTI 20th Anniversary 1.8L L4
2002 Audi TT Quattro ALMS Edition 1.8L L4
2001 Audi A4 Quattro Confort 1.8L L4
2001 Audi A4 Basico 1.8L L4
2001 Audi A4 Avant Luxury 1.8L L4
2001 Audi A4 Avant Confort 1.8L L4
2001 Audi A4 Sport 1.8L L4
2002 Volkswagen Golf GTI 337 1.8L L4
2004 Audi A4 S Line 1.8L L4
2005 Audi A4 Quattro Elite 1.8L L4
2005 Audi A4 S Line Sport 1.8L L4
1989 Porsche 944 Base 2.7L L4
2005 Porsche 911 Turbo S 3.6L H6
2018 Porsche 911 Turbo S Exclusive Series 3.8L H6
2006 Porsche Cayenne Turbo S 4.5L V8
2010 Porsche Cayenne S Transsyberia 4.8L V8
2016 Porsche Panamera Exclusive 4.8L V8
2016 Porsche Panamera GTS
2017 Porsche 911 Carrera S
2017 Porsche 911 Carrera 4
2017 Porsche 911 Carrera 4S
2017 Porsche 911 Carrera
2017 Porsche Macan S 181/3L V6
2001 - 2002 Volkswagen Beetle Sport 1.8L L4
2004 - 2005 Volkswagen Jetta GLI 1.8L L4
2004 - 2005 Volkswagen Passat GLS 4 Motion 1.8L L4
2005 - 2006 Audi A4 Trendy 1.8L L4
2000 - 2001 Volkswagen Golf GLS 1.8L L4
2000 - 2001 Volkswagen Golf GTI GLS 1.8L L4
1987 - 1988 Porsche 944 S 2.5L L4
2001 - 2002 Audi S4 Avant 2.7L V6
1991 - 1992 Porsche 911 Turbo 3.3L H6
1978 - 1979 Porsche 930 Turbo 3.3L H6
1993 - 1994 Porsche 911 Turbo 3.6 3.6L H6
2018 - 2019 Porsche 911 GT2 RS 3.8L H6
1976 - 1977 Porsche 911 Turbo Carrera 3L H6
2018 - 2019 Porsche 911 Carrera 4 GTS 3L H6
2018 - 2019 Porsche 911 Targa 4 GTS 3L H6
2018 - 2019 Porsche 911 Carrera T 3L H6
2018 - 2019 Porsche 911 Carrera GTS 3L H6
2003 - 2004 Audi RS6 Base 4.2L V8
2018 - 2019 Porsche 718 Boxster GTS 152/2.5L H4
2018 - 2019 Porsche 718 Cayman GTS 152/2.5L H4
2017 - 2018 Porsche Macan GTS 183/3L V6
2003 - 2005 Volkswagen Passat GL 1.8L L4
2001 - 2003 Volkswagen Jetta Wolfsburg Edition 1.8L L4
2003 - 2005 Volkswagen Jetta GL 1.8L L4
2002 - 2004 Volkswagen Beetle Turbo S 1.8L L4
2003 - 2005 Audi A4 Vangard 1.8L L4
2000 - 2002 Audi S4 Base 2.7L V6
2017 - 2019 Porsche 911 Targa 4S 3L H6
2017 - 2019 Porsche 911 Targa 4 3L H6
2017 - 2019 Porsche 911 Carrera 4 3L H6
1989 - 1991 Porsche 944 S2 3L L4
2014 - 2016 Porsche Panamera Turbo S Executive 4.8L V8
2014 - 2016 Porsche Panamera Turbo Executive 4.8L V8
2017 - 2019 Porsche 718 Boxster Base 121/2L H4
2017 - 2019 Porsche 718 Cayman Base 121/2L H4
2017 - 2019 Porsche 718 Boxster S 152/2.5L H4
2017 - 2019 Porsche 718 Cayman S 152/2.5L H4
2001 - 2004 Audi A4 Confort 1.8L L4
2002 - 2005 Audi A4 Quattro Luxury 1.8L L4
2003 - 2006 Audi A4 Cabriolet 1.8L L4
2003 - 2006 Audi A4 Cabrio 1.8L L4
1986 - 1989 Porsche 944 Turbo 2.5L L4
1979 - 1982 Porsche 924 Turbo 2L L4
1986 - 1989 Porsche 911 Turbo Carrera 3.3L H6
2017 - 2020 Porsche 911 Carrera S 3L H6
2017 - 2020 Porsche 911 Carrera 4S 3L H6
2017 - 2020 Porsche 911 Carrera 3L H6
2003 - 2006 Porsche Cayenne Turbo 4.5L V8
2003 - 2006 Porsche Cayenne S 4.5L V8
2013 - 2016 Porsche Panamera GTS 4.8L V8
2010 - 2013 Porsche Panamera S 4.8L V8
2010 - 2013 Porsche Panamera 4S 4.8L V8
2012 - 2015 Porsche Panamera Turbo S
2010 - 2013 Porsche Panamera S
2010 - 2013 Porsche Panamera 4S
1999 - 2003 Volkswagen Beetle GL 1.8L L4
2002 - 2006 Volkswagen Golf GTI 1.8T 1.8L L4
2001 - 2005 Audi Allroad Quattro Base 2.7L V6
2000 - 2004 Audi A6 Quattro Base 2.7L V6
2012 - 2016 Porsche Panamera Turbo S 4.8L V8
2010 - 2014 Porsche Cayenne S
2010 - 2014 Porsche Cayenne GTS
2015 - 2019 Porsche Macan S 183/3L V6
2000 - 2005 Volkswagen Jetta GLS 1.8L L4
1999 - 2004 Volkswagen Beetle GLX 1.8L L4
2001 - 2006 Audi A4 Luxury 1.8L L4
1983 - 1988 Porsche 944 Base 2.5L L4
1977 - 1982 Porsche 924 Base 2L L4
1978 - 1983 Porsche 911 SC 3L H6
1999 - 2005 Audi A4 Quattro Avant 1.8L L4
1999 - 2005 Volkswagen Beetle GLS 1.8L L4
2000 - 2006 Audi TT Base 1.8L L4
2000 - 2006 Audi TT Quattro Base 1.8L L4
2010 - 2016 Porsche Panamera Turbo 4.8L V8
2008 - 2014 Porsche Cayenne S 4.8L V8
2008 - 2014 Porsche Cayenne GTS 4.8L V8
2010 - 2016 Porsche Panamera Turbo
2010 - 2016 Porsche Cayenne Turbo
1998 - 2005 Volkswagen Passat GLS 1.8L L4
1998 - 2005 Audi A4 Avant 1.8L L4
2002 - 2009 Porsche 911 GT2 3.6L H6
2009 - 2016 Porsche Cayenne Turbo S
1997 - 2005 Audi A4 Base 1.8L L4
1997 - 2005 Audi A4 Quattro Base 1.8L L4
2011 - 2019 Porsche 911 Turbo S 3.8L H6
2010 - 2019 Porsche 911 Turbo 3.8L H6
2009 - 2018 Porsche Cayenne Turbo S 4.8L V8
2008 - 2018 Porsche Cayenne Turbo 4.8L V8
1996 - 2009 Porsche 911 Turbo 3.6L H6

Brand APR
Color Black
Construction Billet
Emission Code 4
Material 6061 Aluminum
Product Type Diverter Valve
Type Pneumatic Diaphragm
Warning California Proposition 65
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Policies and FAQs

Return Policy

We accept returns on products within 30 days of delivery. Return shipping is the responsibility of the buyer unless we, the seller, are at fault.

Fault reasons include but are not limited to:
  • Buyer was shipped the wrong product
  • Buyer was shipped a damaged product
  • The product page had incorrect fitment and the part does not fit the Buyer's vehicle
The Buyer will not be refunded outbound shipping unless the Seller (Modern Day Muffler & Brake) is at fault.
In cases where the Buyer purchases and ships the return please note that if the Shipper (ex. USPS, FedEx, UPS, etc.) loses the return we will not be able to offer a refund as the Buyer must contact the Shipper and make a claim.
All products must be returned in original condition, meaning that the product must not be damaged, installed, or missing pieces/parts. If the product is not in original condition a deduction will be issued of up to 100% of the purchase price of the product.
Opened boxes, plastic bags, and other packaging are not considered damage (excluding single use items such as, but not limited to, liquids, software, and other components that cannot be reused/resealed).
When we, the seller, are at fault, please Contact Us for a return label, products returned with a shipping label not provided by the seller will not be refunded to the buyer. Please also note that our return labels are issued with the dimensions and weight of the original shipment, if the product is being returned in any box/package besides the original please Contact Us with the dimensions and weight.

Returns must be sent to this address:
Modern Day Muffler & Brake
774 Broad Street
Wadsworth, OH 44281
Products returned directly to a manufacturer or the incorrect address may be issued a deduction or denied a refund entirely.
If a product was delivered outside the 30 day return window or is no longer in original condition please contact us as we may be able to issue a refund in store credit and/or with a deduction. If this is the case please Contact Us as these situations are handled on a case by case basis.
If there are any questions, concerns, or doubts about return eligibility please Contact Us and we would be more than happy to assist you.

This page and policy were last updated: July 14th 2023


This is the line that runs from the front of the vehicle to the rear. On most vehicles it connects to a junction then you will have rear axle lines. On a few cars the intermediate lines will connect to the rear wheels. It is recommended to change the axle lines if you are replacing the intermediate lines.

Our kits include all of the solid metal lines for that section of the vehicle.

We are happy to help! Please help us to help you by going to our return form and filling out the form as best as you can in order to request a return.

  • Modern Day stands by our parts and is happy to accept returns within 30 days of purchase. Parts must be in new condition.
  • If a part arrives damaged, or is defective, Please report it to us immediately. So we can handle it for your promptly.

Yes but you will need to order in advance. All of our items are not stocked at our location. So please place your order online and we will notify you when it is ready for pick up.

Unfortunately we cannot offer single lines outside of kits

Yes, all are covered by the manufacturer's standard warranty. Most warranties cover the cost of parts. Any installation or other fees are non-refundable.

Online we accept PayPal and all major Credit Cards. If your are picking an item up we gladly accept cash.

We can only ship to your confirmed address in PayPal or your billing address if you pay with a credit card.

Orders typically Arrive within 3 to 10 days depending if it is a stocked item or something we have manufactured at time of sale.

Yes please send us a message through our custom orders page.

Yes, but items sent out of the continental U.S. may incur additional charges based on their destination

The left and right sides on a vehicle are determined as though you were sitting in the driver's seat. The left is the driver's side, and the right is the passenger's side.

Check it again tomorrow. It takes up to 1 day for the carrier to give status and a delivery date. UPS and FedEx provide delivery dates, USPS usually does not but they take no longer than 5 business days.

Yes! Thank you for your military service!

Still have a question or concern?  Please contact use our contact us form!

Yes! Thank you for your military service!

Warranty Information

Customer service is our top priority and because we value your time and energy we ask you to visit our Contact Us page and reach out so that we may assist you in finding the correct warranty for your product. Please include your name, the name on the order, the order number, and the SKU of the product to ensure the quickest and most accurate response to your inquiry.

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