slp w.out glasspack?
12-12-2009, 07:34 PM
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slp w.out glasspack? ok plz forgive me if this is already written somewhere. here the deal. i just got a used slp lm 1 for my 2002 z28 but it is used. it is in very good condition however, the owner never used the glasspack/resonator/muffler (took to muffler shop and welded pieces together w.out muffler). my question is, do i need the muffler or can i just use my set up without it. like will emissions be affected at all? thnx ls1 tech!
