| OBX 4-1 Header
I purchased this header about 6 months ago. Quality/Durability, I'd give it a 9/10. Welding has held up, no cracks, no bends, no dents, nothing mis-shapen. Its a perfect fitment and direct bolt on. The runners were about a quarter of an inch thicker than OEM. Thicker than DC Sports.
As soon as i put it on, I felt a significant drop in low end power. It did not come with the Donut Gasket that goes in between the downpipe and header.
Overall, i'd give it a 6/10. Not that great of a header, loss significant power (for the d17) in the low end (did not justify the gain in the top end, not worth it.) but for looks and fitment, its great. It also gave my stock exhaust a very slight deeper tone when you start it up. Thats about it. Hope this helps.. go with a Race Header from DC or stick with OEM. | 
