Newbie help with upgrades

[ConradoIII]

hey everyone i just got a 350z 2003 and i looking at getting this kit on ebay that has the headers down pipe and y pipe ...will all this fit my stock exhaust and how much of a gain do u think i will get the out lets r

headers 6-2-1 2.25 outletdownpipe 2.25 outlet / inletY-pipe 2.25inlet 3.0 outletWill all this fit my stock exhaust???AIM -ConradoIII

[evildky]

you can doo all the exhaust work from tip to tail and you'll see an absolute max increase fo 15 whp, most likely les, these bolt ons are only going to see minor improvements, if you want big improvement, forced induction and/or a stroker are the only ways to see significant improvement, of course NO2 is an option but it's just a part time power adder

[ZBAZ]

Being new to the site I found this post to be very sound. The advise is perfect for any new 350z owner. zerothread/157362