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A lot more power for your insanely effective car.
From the February 2015 issue of Vehicle and DriverTuner cars, those science projects engineered to make already-fast vehicles really berserk, are typically more trouble than they’re worth. But what if you could make a 2-ton-plus sports sedan run a sub-11 quarter-mile with absolutely nothing far more than a pc upgrade? Wouldn’t that be worthwhile?
That is the pitch of Opelika, Alabama–based APR with its Stage 1 Audi RS7. Not that the Audi needs considerably help from this longtime Volkswagen tuner. The stock RS7, with its 8-speed automatic and Quattro program, reaches 60 mph in 3.4 seconds and blitzes the quarter-mile in 11.6 seconds at 123 mph.
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However, fitted to the RS7 noticed right here ($ 129,374 as tested), APR’s Stage 1 tune boosts the output of the stock twin-turbo 4.-liter V-8 from 560 horsepower and 516 pound-feet of torque to a claimed 674 and 700, respectively, on 93-octane pump gas. If that nevertheless seems soft, a second tuning map obtainable at the touch of the cruise-control stalk yields 728 ponies and 744 pound-feet on 25-octane racing fuel for a appropriate Hellcat-crushing act. All that’s needed is a software program reflash for the engine personal computer ($ 2999 installed) that can be performed at any of APR’s 400-plus companion Audi dealers.
Despite the fact that our testing wasn’t without having issues—an APR engineer had to exorcise a demon from our car’s brain before it ran properly—the further thrust had the 4508-pound Audi pulling violently with the Thor hammer down. It briefly spun all 4 tires throughout launch, and our test gear reported an impressive 2.9-second warp to 60 mph on premium unleaded, with the quarter-mile blurring previous in 11. flat at 129 mph. Not fairly the higher-10-second hero instances APR promised, but nevertheless wickedly rapid for just a couple of extra lines of code.
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The new programming also sharpens throttle response and ups the RS7’s electronically restricted top speed from the stock 190 mph to a claimed 202. There are no adjustments in the cabin to indicate the added power underhood, with control for the different applications spliced into the Audi’s cruise-control stalk. Further management is accessible through the APR Mobile program ($ 200), which utilizes a Bluetooth dongle plugged into the car’s OBD II port to relay information to a smartphone app.
Costing the exact same as the RS7’s optional Alcantara headliner, APR’s Stage 1 setup is a tantalizing overall performance worth. Just remember that, as with all aftermarket engine mods, the car’s factory warranty will be shredded and your results could vary. APR’s 560-hp program for the lesser Audi S6 and S7 ($ 1499) might be a lot more desirable still, but that would be way as well sensible.
APR LLC, 4800 U.S. Highway 280 West,
Opelika, Alabama 36801 800-680-7921
www.goapr.com
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APR Audi RS7 Stage 1 Tested: 647 Horsepower, 700 lb-ft!
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