Hey No Rice, my header is cracked too. I'm having mine welded. Be sure to have it TIG welded and bolt the header to a cylinder head to prevent warping the flange. It's also a good idea to put some weld around the primarys on the flange if you play with the heat good. Stock headers will work well into the 10 second range. Check your crossover pipe too. Mine was leaking and the ends were warped from heat. I had no choice but to replace it. I chose the 2 1/4" stock replacement from Kirbans. Good quality, fit good, 304 stainless, only complaint is that it didn't come with new bolts. Performance should increase too with a tight exhaust system, considering it's BEFORE the turbo. My car went 95 mph thru the 1/4 with the cracked header, 15psi of ****ty boost, NO POSI, NO BOOST off the line. I'm attempting mid 11's with stock turbo and intercooler.