From the sound clips I've heard, the Corsa sounds better. But more importantly, the Mopar owned SRT-8s that ran both One Lap of America and the Targa Newfoundland race both wore Corsa exhaust systems. And if engineers SRT guys wanting to win a race chose it, thats good enough for me.

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I used to own one of the first SRT-4s sold, bought it new in Feb 2003, sold it Nov 2006 with 75K and Stage 3. Now I drive a 2006 SRT-8 Charger.