· Not Anymore.
OBX, SS and other cheaper names suck. HotShots have been cracking on a lot of guy's Spec's I know. AEBS is the name to go and it is MUCH MUCH better if you plan on seriously building the engine than any other company not to mention the quality of their product is superior to all (and oh yea, the downpipe has a high flow cat so you wont throw a cel or fail emissions ). Keep in mind, 4-1 header = more top end; 4-2-1 = generally more low/mid.