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A turbo or modified car will normally produce more of this overrun popping sound, mostly because of the extra fuel. But you seem to have it nailed, it's in the tune. Having the car run a little rich on decel will cause some nice pops and even spits of fire on a car with a straight through exhaust. Running catless helps too, since a lot of the unburnt fuel burns up in the cats. (this is likely why the car in the video you posted is doing it it)
I'm a big fan of this sound as well, my Vette makes awesome noises on decel. Brake HARD into a turn, heal/toe down 2 gears, blipping to 5k+, listen to the spits of hellfire popping out the back of the car... my personal favorite part of driving a modified car. Listen to some F40/F40LM clips on YouTube if you want to hear CRAZY overrun popping!
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2003 Corvette Z06 - Dry Sump LS7 built by East Coast Supercharging 
560rwhp & 549rwtq 10.8@134
2013 Subaru BRZ Limited - WRB, 6MT, PTuning Header, Motriv OP & FP, Perrin Res. Catback, Toms Tail Lights, Sprint Springs, Rays 57DR Wheels, 186rwhp
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