Which Flowmaster 40

[Redog]

I'm liking the Delta 40 for the Alero, but which is the best for the Alero?

Standard 40
Delta 40
Super 40

I'm still thinking the Delta 40, but the Super claims to have the same benfits with lower interior noise. I don't like the bit of a whine in the standard 40's tone

From the Flowmaster web page:

Delta 40

This two chamber design incorporates Flowmasters patented "Delta Flow" technology. The "Delta" deflectors result in increased scavenging for better performance and reduced interior resonance over the standard 40 series with a nice growl outside the vehicle. Sounds great on late model performance cars with catalytic converters. Constructed of 16 gauge aluminized steel and fully mig-welded for maximum durability.

Super 40

The Super 40 is our latest development utilizing "Gen II Delta Flow" technology. This gets you the best of both worlds of Sound and Performance. The Super 40 has that "deep powerful" sound of the original 40 series but with all the benefits of performance and low interior resonance from the "Delta Flow technology."