Ever Victorious wrote:
1) AEM has a full cat back about to come into production.
2) The point of a full cat-back is not to make big power by itself, but to create a synergistic increase in power/efficiency when combined with other mods. It does more good if it is combined with a CAI (available), headers (not available), and hi-flow cat (who knows). Even better if there are other mods such as forced induction.
Though this has been discussed several times before.
I understand the point of a full cat-back, but on a small-displacement engine, it's not good to have little-to-no back pressure. Second, it isn't good to replace the exhaust until the engine is FULLY broken in, our Senior Master Tech has an '05 SE-R Altima that he says is just broken in at 18K. He says wait until at least 10K or so.
Not questioning anyone's intelligence, just referencing what I've been taught at trade school/Nissan school/work.