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- – No impact on credit to apply
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Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
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30-day returns
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30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
Only 8 left in stock, order soon!
Arrives
Monday, Sep 21
Features
- Performance test (0-60, 14 mile testing)
- Carb EO # D-745
- Shift point and firmness adjustment
- Tire size and axle gear ratio adjustment
- Internet updating using PC software
- HD 2.8 color screen with updated interface for easier and faster modifications
- Speed and rev limiter adjustments
- Active fuel management control
- Diagnostic capability read and clear trouble codes with explanation of codes
- Speed and rev limiter adjustments*
Description
ACCEL Supertuner
Manufacturer: Accel
Brand: ACCEL
Model: ACCEL Supertuner
Item Weight: 9.9 ounces
Item model number: 49505
Exterior: Machined
Manufacturer Part Number: 49505
OEM Part Number: 49505
Date First Available: September 29, 2016
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Sep 21
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
I bought to use on my 05 Dodge Rumble Bee for pulling a trailer with 2 large motorcycles on it. Gave me up to 2 mpg depending on conditions, and controls the shifting on hills WAY better than the factory Tow Mode. I highly recommend this !!!
Reviewed in the United States on March 28, 2025 by Michael central Wisconsin
Was a waist of time to get something that costs 300 dollars, and needs to be further set up from the manufacturer. the total cost of parts to make it can't be more than 25 dollars, very disappointed with Accel. usually they are a quality performance manufacturer but I guess that no longer applies to this company. Thank you amazon for taking care of there **** up. they gave me a replacement, and then finally a refund without any grief...
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Reviewed in the United States on April 15, 2022 by Cconran Cconran
This does as it says! I own a 2007 Suburban and also a 2007 GMC Sierra. I first used it on my Sierra didn’t think much about it or that it did much. I was wrong I used it on my suburban and found I missed what it did for my pickup. That being said there is one down fall. You can only use it on one vehicle at a time. Once programmer has been used on one vehicle you have to return that vehicle back to stock to program another vehicle. It would be nice if they would allow two or three Programs at one. Other than that issue this think is worth the money!
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Reviewed in the United States on February 27, 2021 by Thats Weird!
My 2008 F-150 with the 4.6L was having trouble keeping up at highway speeds towing a 5000 lbs. boat with engine and trailer [along with stuff in truck and boat coming close to max towing on truck] (4000+ rpms to hold 65 to 70 mph) and this lowered it down to 3000 rpms using 91 octane fuel. I was thinking I'd have to trade the truck in to get something that could handle towing the boat or avoid the interstate freeways, but I can handle it with the Max Towing Setting. On the 87 Octane Mileage it helps out maybe 1 or 2 mpg for normal driving (not towing). I haven't tried the other settings.
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Reviewed in the United States on September 20, 2022 by Jeremy E.
Works good mine had tbe screen go out but does work amazing i have to buying it againg that amazing i want to
Reviewed in the United States on May 28, 2025 by Fisherjd71
Nice tool gained 8 more miles to gal in city and long highway up to 12 miles a gal
Reviewed in the United States on February 19, 2025 by Rachael Bock
Tried to tune my 05 mustang gt, went throught the set up and steps and now my car wolt even idle. I would not recommend this tuner. My car is still sitting, no one will touch it for under 900$
Reviewed in the United States on December 15, 2025 by Kaden
It did help with the response on my truck, I use 87 octane and there is a tune specifically for that. There are also tunes for 91 octanes, gas saver mode (not for towing), 87 octane, and return to stock. I looked at HP tuners and that is totally above my expectations or budget. This did work for me since it allowed me to change the size of my tires and it recal'd my speedo. You can also use it to advance or retard the timing of your spark, increase the rev limiter or the speed limiter. A handy tool is the idle adjustment if you're working on the engine by yourself and want to hold it at some value. It goes back to normal once you exit that option. For the price I would say that it's ok, I thought I would get a little more but it's fine.
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Reviewed in the United States on March 21, 2020 by AsianPhoenix808