Quote:
Originally Posted by KingLT1
The factory cat pipes are the biggest bottle neck.
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We checked my green cats last week and they were burnt/mangled, so we scraped them out. It now has only the Kooks AB mufflers.
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2020 ZL1LE A10.
LME LT4 390 short block, LME CID Heads, Kong E2650, FBO.
15" conversion, MT ET Street R 325/15.
100 octane: 1045hp/1055tq.
100 octane + Meth (1x10+): 1117 hp/1067 tq