That merge sure looks like its choking the hell out of it. I also used the flowmaster scavenger series 4" to dual 3". Also used a flowmaster merge from dual 2.5 to 3.5 into my turbo. Theyre nice pieces
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71 grand prix SJ 4280# 462 new for 2008 -
8.7:1 , 98cc 6Xs 246/209, 342 12bolt , BW S475 turbo JGS 50mm WG 56mm BOV. 600hp the easy way!
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