Originally Posted by DEpointfive0

Either Stillen G3 intake OR HFCs... Now safest might be intake because you can't ruin anything really...
And unless you're getting quality Berks, you might not squeeze the most power out...
And you'll have to deal with the demon bolt and the risk of breaking the O2 sensors.

I'd go intake, then exhaust, then HFCs if you want it louder and want to get a bit more power out