Quote Originally Posted by psycho_freke
I'm in the market for a header. Looking very seriously at DC Sports, but still not quite sure which header is best for my GSR. I was hoping someone would know of a place that's priced pretty reasonably. Also, is there much of a performance difference between the 1pc and 2pc headers? Is it possible to install the 1pc headers yourself using jack stands/ramps, or will there not be enough clearance?
If you're considering the purchase of a DC Sports, save your money and keep the stock manifold. Until you install larger camshafts and up the compression, you'll see minimal results at best. The *best* header for your GSR depends largely on the depth of your wallet; for a budget build i would recommend the stock ITR manifold.

Also, a 2 piece header will have clearance issues if you ride your car slammed out. Pretty much everything siccEJ said is the truth!

-jonathan