It all depends on what you want to spend.

If you have the $$$$, get a high flow cat or test pipe, and a cat back system, such as a borla or apr.

Otherwise the magnaflow will suffice, probably looking at more like between 5-10hp, where a test pipe and full exhaust will get you a lot more power.

On the same hand, if your not chipped yet, forget about the exhaust and get chipped first, much more bang for the $$$$. Chip should always be the first mod if you can afford it, but definitely chip before exhaust, you'll have so much more fun with a chip.

I mean 40hp gain or 5-10hp, what would you pick??????

 

I'm redoing my exhaust this week. It has a 3'' test pipe now so from there back I'm doing 2.75'' piping all the way back to my magnaflow muffler. My flex pipe went bad so I figured a good time to upgrade.

 

Ya I am getting the speedtuning chip this week as well