Exhaust System

Discussion in 'Technical' started by joseph, Dec 21, 2016.

  1. joseph

    joseph Member

    Hey Guys,I was thinking of buying an exhaust system for my '92 300zx NA 2+0 im looking for the brand thats gonna give me the most kw,I had my eye on the top secret exhaust and the hks hi power i was wondering if anyone knew how much kw does each exhaust system give.
    Thanks
    Joseph
     
  2. SRB-2NV

    SRB-2NV #TEAMROB

    Any 2.5" system will do... 5-10kw max.
     
  3. Jinxed

    Jinxed Moderator

    agreed.

    unlike on some newer cars where often a brand will say "increases power by **kw" , older cars like the zed rarely have such claims attached.

    suffice to say, any aftermarket exhaust in a appropriate size such as 2.5" will have a positive increase in power, and on a NA is one of the few mods most consider worth doing.

    adding a set of aftermarket headers and a pod filter will give you the best bang for your buck for a standard NA, and a nistune board with a retune will maximise it possible powerband.

    other than maintanence, from there you start looking at more expensive mods...........
     
  4. Fists

    Fists Well-Known Member

    There's these really cool exhausts that have spinning wheels in them, then you hook the other end of the spinny bit up to your intake. Free power!

    SRB-2NV tried the fast NA thing, now look at his sig.
     
  5. East Coast Z

    East Coast Z Well-Known Member

    You do realise the NA & TT exhausts are the same?

    The standard TT was advertised as producing 300HP.
    The NA supposedly produced 222HP.

    Do you think the exhaust is restrictive on the NA?
    Are you running in excess of 300HP?
     
  6. Jinxed

    Jinxed Moderator

    Are you trying to argue that there is no performance gain from adding a aftermarket exhaust?

    Its one the most basic, and widely proven effective mods for almost any car, including the z32.
     
  7. East Coast Z

    East Coast Z Well-Known Member

    Argue?
    How much horsepower will be gained by changing the exhaust on an NA from the standard configuration, to aftermarket?
     
  8. Shane001

    Shane001 Well-Known Member

    For an NA, I'd expect a decent set of headers would be the place to start.
     
  9. SRB-2NV

    SRB-2NV #TEAMROB

    An NA thats had an exhaust, headers, intake and tune should do 150rwkw or so.. about 30kw over stock.
     
  10. East Coast Z

    East Coast Z Well-Known Member

    The question was:
    How much horsepower will be gained by changing the exhaust on an NA from the standard configuration, to aftermarket?
     
  11. SRB-2NV

    SRB-2NV #TEAMROB

    5-10rwkw.
     
  12. coatesie

    coatesie New Member

     
  13. Fists

    Fists Well-Known Member

    When you're looking at something that's already straight piped the gains/flow capacity is very linear but since the stock system is full of mufflers and stuff it's a bit more wobbly.

    On an NA you'll see nearly the same gains using cheap weld in straight pipes and glass packs to delete the cats and mufflers as you will with a really nice apex-i system but it'd sound like arse and may cause some larger peaks and troughs in the torque curve depending on where the resonances move/develop
     

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