Are these genuine Speacialty Z downpipes?

[Shalz92]

Are these real SZ downpipes?

[itsa300zx]

I'm pretty sure the original specialty Z super split DP had both pipes separated all the way to the 3 bolt flange. Those look more like Lebree versions of super split DP, 2.5"
I'm not 100% sure though

[Shalz92]

Thank you for your input. The guy I'm trying to buy these from says that:

"These are Specialty-Z which were made by Labree before Specialty-Z came out with the 3."

So yea I'm not sure what to believe because the designs look different vs the 3" SZ DP. Also would this 2.5" DP be better or the 3" DP be better? Also as a sidenote I tried looking online on Google everywhere to see how SZ 2.5" look like but couldn't find any post.

[itsa300zx]

Thank you for your input. The guy I'm trying to buy these from says that:

"These are Specialty-Z which were made by Labree before Specialty-Z came out with the 3."

So yea I'm not sure what to believe because the designs look different vs the 3" SZ DP. Also would this 2.5" DP be better or the 3" DP be better? Also as a sidenote I tried looking online on Google everywhere to see how SZ 2.5" look like but couldn't find any post.

True;Lebree use to make SZ exhaust components. yes the 3" expansion DP are completely different; they flow much better in the upper rpm range, but you would need 3" test pipes too.

[Shalz92]

One last question....is there any advantages of 2.5" downpipe over the 3" DP. Thank you once again for a quick and responsive reply.

[itsa300zx]

Here is a great discussion on piping and turbo cars. Lots of reading but lots to learn too:)

http://www.twinturbo.net/nissan/300zx/f ... -mind.html

[Shalz92]

Thank you to everyone who helped me out very much appreciated.