Redding had won his first pole position of the season at the San Juan circuit earlier in the weekend, but fell to the back of the pack after falling from his Ducati at the start due to a technical problem.
Although the British rider made a solid comeback to finish in the points in ninth place, the result effectively ended his chances of beating Toprak Razgatlioglu and Jonathan Rea for a first WSBK title.
Redding said the incident in Race 1 gave him extra motivation for Sunday and, after missing the Superpole race victory by 0.046s, he scored a convincing victory in the final race on Sunday.
“It was the right thing,” Redding said of his seventh win of the season. “I was ready for it on Sunday. I was hungry. I wasn’t so much visualizing, it was just getting pumped up, getting ready for war and bringing it to them.
“That’s where it all started in the morning warm-up. I went out and just wanted it today. I was a little upset after what happened on Saturday because I thought I could finish on the podium.
“So from the first lap of the warm-up it was hammered. I knew I had the pace and I went to the superpole race and I was like ‘all you have for 10 laps, come on. -y, go ahead, go ‘.
“I had the pace and the race longer, I know I’m stronger. I just knew I was stronger for the 20 laps.”
“I was on the wire all weekend. I was like second, second, second. I told [my girlfriend] Jacey [Hayden] that I need to win this race, I don’t want to be second. so I just had that mentality for the last race and all my heart to the end. “
Redding, Razgatlioglu and Rea were involved in a thrilling battle for victory on Sunday, before the Ducati rider picked up his pace in the middle of the race, making the decisive step for the lead on lap 11 of 21st.
Once in the lead, Redding managed to widen a gap of more than three seconds with a series of fastest laps, before passing the checkered flag by a reduced margin of 2.4 seconds.
Redding said he felt “dangerously fast” in the Ducati, such was his pace once he broke away from the chase pack led by Rea and Razgatlioglu.
“I just showed that aggressive side that I try not to show because I don’t want to have too much contact because I respect but we try to run respectably,” he said.
“I was tough, if there’s a gap, I’m coming for it and I’ve got that side in me, and if that’s what it’s going to take, this is what it’s going to take.
“I got my beat and I was just like ‘hammer it, go, go, go.’ And I knew once I had two laps under my belt, it was done, it was a deal. concluded.
“I wasn’t exaggerating, small mistake but I was riding conservatively but the lap time was there and that’s when I felt unsafe with the bike because I’m reserved but I’m fast .
“So when I saw the gap go down with a mistake I hit back with a faster lap so I knew where I was, and it was amazing to win here.”