QUOTE (Lancer2.4GTS @ Aug 22 2009, 03:51 PM)

So....Which would you recommend? (IMG:
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Hmmm, that's a tough one.
Magnaflow products are always top of the line, guaranteed gains, great sound, and great looks. It is a catback, but the pipe from the cat to the axle isn't much bigger than the stock pipe, so your not really going to gain much more other than having stainless steel pipe, which is better than stock. The problem I have with the magnaflow is all the extra bends, follows basically the same path as the stock exhaust, which kind of defeats the purpose of the straight free flowing exhaust. Whether or not that equates to less gains, idk.
I don't know much about Greedy, I never bought anything from them, but their products seem to be well made and their rep in the tuner world is very good. The spectrum looks great and sounds nice from the videos I've seen. It's an axle back, but I not sure if that's makes a big difference in our cars. I like that it has a straight(er) path and does not use the stock muffler location.
If you go by the principal that straighter is greater then I'd lean toward the spectrum. If you want the extra catback pipe and like the stock look then magnaflow is the way to go.
If those were my only choices and I had to choose one, I guess I'd probably go with the spectrum, even though magnaflow is great stuff, I didn't want to use the stock muffler location and you can always add a SS pipe from the cat to the axle later.
BTW - I went with HKS because they've been in the import aftermarket business for 36 years and they were started in Japan. They know Japanese and JDM cars better than any of the other big names. Top of the line quality and proven performance gains. They hold more time attack records than any other company. And the HKS Hi-Power Exhaust has a race inspired offset muffler and piping design that was inspired and designed from endurance and GT racing in Japan.