is the svt header that good over let say OBX header? im talking power gains? i mean i could get the obx header for around 200 shipped., now is the svt header kit is 270 + the svt cat or orp thats 175 thats like 445 +shipping. is it worth it? im not bashing i just want to know, because im gonna be in the market for a header in a couple of weeks, so just trying to figuer it out... i know obx is bad quality but still thats like doble the price for almost the same gains??