Did you know?A 'Vortec' 5.3L V8 produces 290 hp (216 kW), for the half-ton 1500 series.
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I have the sport system with the dual tips. I don't think they make a dual setup. As for sound nice and quiet outside has a nice rumble that gets you a look. I also run a volant cai. Price wise your looking at 700$ plus.
thought that I would add this ,also just got off the phone with summit for the 02 avalanche they gave me this part # 14260 and a price of $687.95 for the corsa sport system.