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Pampered-Z · 12-21-2005, 04:29 PM

Don't know what would make more power between adding header or dropping the exhaust. I will tell you when I installed the macs on my 93 with the stock cat back there was a noticable improvement. When I went with the cat back there was only a slight improvement. So I think headers will give you more gains then a cat back will.

12-21-2005, 04:29 PM	#5
Pampered-Z Sliderule / Moderator Join Date: Oct 2004 Location: Catawissa PA Posts: 2,294 iTrader: (1)	Don't know what would make more power between adding header or dropping the exhaust. I will tell you when I installed the macs on my 93 with the stock cat back there was a noticable improvement. When I went with the cat back there was only a slight improvement. So I think headers will give you more gains then a cat back will. __________________ 93Z M6 Black: The 385 Lives! Supercharged, 3-core front mount intercooler, GTP heads, 3:73's, Street twin clutch, Jethot Longtubes, Mufflex 4" catback/spintech, S+W cage, Spohn Suspenion, Yada Yada Yada 1) Build it 2) Race it 3) Break it 4) Repeat!!!