Does anyone know power gains for an intake vs headers vs exhaust? This is as a single bolt on, I know all 3 give best performance gains just curious what is really restrictive on the motor.

 

exhaust ftw. headers ftl. intake meh.

 

^ Phreaktor had what I had in mind
Exhaust first
Headers next
Intake third

 

never expect much/anything from exhaust, intake, or headers. they're all pretty much brownie points hp.

 

This is too complicated to simply answer. If by intake we include plenum modifications, then start there. An aftermarket plenum or plenum spacer will yield results. You can then move onto either Test Pipes or High Flow Cats (both of which are the next best bang-for-the-buck mods).

From there on, an exhaust of choice to reduce back-pressure for better flow. Then, if you'd like, you can go for headers, which don't benefit a Z nearly as much as it does on other cars. I'd leave the headers alone, and then get the car tuned (UTEC $850) or reflashed (Osiris program $500).

For whatever it's worth, I'm doing/did: Plenum Spacer > Global Timing Advance 17* > JWT Popcharger/Intake > Test Pipes > Osiris. There's a possibility I'll purchase a complete exhaust, but I'm still looking for the right one.

 

So we can say

1) Plenum Spacer
2) Intake
3) Timing advance?
4) Test Pipe / high flow cats
5) Exhaust
6) ECU tune

Who or what manufacture is known on the Z for best gains, especially the spacer or the intake for example

 

....

 

Ignorant question...how does Osiris or UTEC work? "then get the car tuned (UTEC $850) or reflashed (Osiris program $500)."

 

Timing Advance is totally optional and can be done with the ECU Tune. I had mine done via Nissan Consult Tool, since I didn't feel like waiting to buy an ECU tune. You can keep peg that one underneath the ECU Tune category.

But yeah, that's pretty much a good order to take it at. As far as brands, you're going to get flamed for not reading and searching. What I can tell you is that, generally, a rule of thumb around here is that if it's cheap - you get what you pay for. There are a few minor exceptions to that rule, but not very many.

Don't skimp out on any exhaust components. You'll need one that's well built to avoid rasp, rattling, and size-fitment issues. What's left is to basically listen to a sh*t load of sound/video clips and decide what exhaust sound you like the most. If you like loud, there's plenty of that for the Z...if you want mellow, you're limited to a very select few.

Go to Youtube and search around there for exhaust clips. And read around the exhaust section.

 

The UTEC is a piggy-back Engine Management ECU that you'll have to get tuned by a reputable tuner. It's a lot more flexible than the Osiris is, read up here:

http://www.hopupracing.com/tuxsenmasyni.html

Osiris is an attractive alternative because it's able to serve the user with the most common/desired facets of car tuning: ECU reflash + Redline Increase + Top-speed removal + Custom maps. An ECU reflash is a great way of having your ECU adjust and learn that you've added mods to your car - it often nets gains in the neighborhood of 10WHP/10TQ. A proper tune is able to give you a bit more, because of its flexibility. But because you can upload custom maps into your car's ECU, you sort of have that flexibility too.

Search Osiris on the forum and you'll see a gigantic thread about it. Skim around, read the first post for details, and visit the Uprev (maker) website.

 

The question gets even more complicated if you factor in the year. For the revup, I believe the results look more like this:

1) Plenum Spacer/MREV-2
2) Test Pipes / HFCs
3) ECU tune
4) Exhaust
5) Intake (filter, that is)

 

You're really supposed to tune last, afaik.

 

Ok so flame away but revup? Whats an 04 6 speed?

 

Modifying your car? Here is a excellent place to start: https://my350z.com/forum/engine-and-drivetrain/50429-new-350z-owners-read-this-before-doing-any-modifications-to-your-z.html.

 

Headers are worthless.

BTW would you like to race me on Saturday, November 24, Cecil County Dragway, Rising Sun, MD?

 

I wasted my money on “brownie points hp.” Please do not post your time slip here and embarrass me.

https://my350z.com/forum/drag/233840-top-25-1-4-mile-times-for-tt-st-supercharger-nitrous-bolt-ons-stock.html

 

CAI make your car feel slower. you lose torque for a little more power up top and for everyday driving you will miss that torque. exhaust ftw.

 

The revup engine first appeared on the 2005 35th Anniversary, and continued on the '06 models, but IIRC, only the 6MT. The 300hp, 260 ft-lbs motor has a 7K redline and responds differently to some of the mods we're discussing. It has a lot of mostly internal changes from the previous engine (search). No, the '04s did not have a revup engine.



The list is not the order of putting them on your car, it's the relative hp gains expected from the subject upgrade. I hope everyone knows that the tune is last. Sorry for the confusion.

 

though they may increase the hp a bit, it would be nothing you would notice anyway. mostly that is for sound and/or looks. want a real hp gain that is noticable, go F/I

 

Ahh, gotcha.