diff. between dual n1...

[D-STYLE180SX]

Im looking to buy an exhaust system for my 91 240sx, and I wanted to know what the diff.are between the Apexi dual n1 and Apexi n1.
I know the single n1 is cheaper,but which one has the better sound?
performance?
Im looking for a DEEP sound!
Thanks!

[MeanRex7]

APEX'i N1 is a single exhaust
APEX'i Dual N1 is a dual exhaust...
a single dual is smaller than the normal N1, dual is smaller but you have two exhausts. I'd believe it'd have a similar size pipe diam before the Y-Pipe, you can find measurements at www.apexiusa.com

[D-STYLE180SX]

Thanks!
How about the sound?

[D-STYLE180SX]

anyone else???

[Archangel]

For starters, I don't own either one.
Supposedly the both sound pretty good.  The single will be louder than the dual, but you can buy silencers for either one, which barely affect the hp gains.

Basically, the n1 single is better for a turboed engine, while the dual would be better for a n/a engine.
Both give similar hp gains, with the single a few ponies higher.
Also, you will lose some torque with either of them, but the dual will retain more back pressure, therefore retaining more torque.
You'll notice most of the hp gains in the mid to high rpms, and you'll retain a little more mid range torque with the dual.
I prefer the dual. &nbsp;<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt=':)'>