Subject	anyone run 4" downpipes (sport 700)
Posted by	blackice98 on September 16, 2012 at 9:22 PM
	This message has been viewed 291 times.
Message	Hey everyone. Im a big lurker on here. Im building my 1991 300zx twin turbo at the moment. Im going to be running pro efi w/ e85, sport 700's, upgraded cams, ash massive v3, all 2.5" ash piping ect and my tuner is telling me that he wants to run custom 4" downpipes. Not sure about what im doing cat back yet, probably 3" b & b quad round tips, of course. im dumping a whole bunch of money into it and just want it to be the best possible. Is 4" too much? would the 3" cat back be too much back pressur? thanks
Follow Ups	anyone run 4" downpipes (sport 700) - blackice98 21:22:41 09/16/12 Nope. But maybe more info needed here - Drk93TT 21:38:57 09/16/12 Re: Nope. But maybe more info needed here - blackice98 23:01:21 09/16/12 Sounds like the best choice. - Drk93TT 07:45:06 09/17/12 B&B muffler is more restricted than SZ's. (n/m) - lewoolf2 11:54:42 09/17/12 Re: B&B muffler is more restricted than SZ's. - blackice98 23:28:05 09/17/12 For sp700's max hp levels,no need. - samsung-Z [Houston] 23:24:26 09/16/12 Re: anyone run 4" downpipes (sport 700) - HKS Z32 18:25:30 09/17/12
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