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Fits 2020-2022 Chevrolet Silverado/GMC Sierra 2500/3500 - ECM/TCM Unlock

Fits 2020-2022 Chevrolet Silverado/GMC Sierra 2500/3500 - ECM/TCM Unlock

SKU: 2848-DS1
Regular price $798.95 USD
Regular price Sale price $798.95 USD
Sale Sold out

The 2020-2022 L5P GM Duramax Flashpaq performance programmer (PN 2848-DS1) now includes hardware and software to UNLOCK YOUR ECM AND TCM AT HOME, and contains tunes engineered with the daily driver, heavy tower, and enthusiast in mind. Once the ECM/TCM are unlocked with the included software and harnesses (a one-time operation to the vehicle), our pre-loaded tunes can be flashed into the truck to fine tune it for daily driving, towing, fuel mileage or all-out performance. At its maximum power level, Flashpaq for L5P can add up to 150 horsepower and 350ft-lbs of torque without ever turning a wrench. We also know reliability is critical, and our tuning has gone through extensive testing for performance gains without putting undue stress on an otherwise stock truck. Flashpaq #2848-DS1 now includes hardware and software allowing installers to unlock the ECM and TCM on their own, which means it is not necessary to remove the ECM from the vehicle and send it in. This also means you'll be tuning your truck in minutes, with NO VEHICLE DOWNTIME shipping parts back and forth. It has never been easier to add real power to an L5P Duramax! A notable feature is the 'Keep Drive Modes' function which will remember your last settings for Exhaust Braking, Tow/Haul mode, and Grade Braking. This means you no longer have to manually turn them on every time you restart your truck. Flashpaq also offers the ability to adjust throttle-pedal sensitivity in the device's menus with our built-in Throttle Booster feature while loading the selected tune. Every owner has their own preferences in pedal response, and with Flashpaq for 2020-2022 GM Diesel, you be able to set it exactly how you want it. Flashpaq allows an increase in throttle sensitivity from 0-50% above our calibration to optimize your driving experience.
  • Kit includes wiring harness and software to unlock vehicle ECM and TCM
  • Preloaded with 4 levels of power: Heavy Tow (50hp/100tq),Mileage XS 75hp/160tq), Performance Tow (90hp/180tq), Performance (125hp/275tq)
  • Tunes 10-speed Allison transmission
  • Speedometer Adjustment for Tire Size (26-38”) and Gear Ratios (3.42-5.13)
  • Adjustable throttle pedal sensitivity (5-50% boost)
  • Commands Mobile/Manual DPF Regeneration cycles
  • Perform Adaptive Transmission Relearn
  • "Remember Last Setting" function for Exhaust Brake, Grade Braking and Tow/Haul mode
  • Speed Limiter
  • Idle UP - 600-1800 RPM (temporary for winch/elec. Accessories)
  • High-Definition 2.8′′ Color Screen with Easy Navigation
  • Vehicle parameter monitoring capabilities and Advanced Data Acquisition (PIDs)
  • Read & Clear Diagnostic Trouble Codes
  • Internet updateable with all-new update software via USB
  • Powerful processor for fast reading and writing of ECM
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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

FAQs

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.

Product Notices

*NOTE: Product images may not reflect actual product appeareance.

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