I`m installing my new engine and decieded to use the "made in china" SS headers that I bought awhile back on e-bay. I heard of fitment problems with them and was wondering if that might be due to the fact that they are copys of the ATR headers thus the OE dn pipe wont fit.I need to know if say a 3" dp from RJC with waste gate puck would fit these headers or do I have to get a ATR specific dp to fit these chinease headers? If somebody out there who has used em,do they fit or what needs to be done to make em fit? I know I need to get down out of the garage rafters and mock em up on the eng while its on the stand,but for starters I thought I`d start with some input from people who have been there,and done that.Man,these things are real nice looking,welded on ports inside and out,and for only $170 a copy,I can fix a lot of mistakes and still come out ahead,,so --let me know your chinease header install storys-----