Ok so I recently installed a set of stillen test pipes Godspeed exhaust nismo intake and a kinetix v+ Plenum. The problem I am having is now my car is slower. It doesn't our you back in the seat anymore. The car is a 03 enthusiast with only 26k on it. I am getting a Cobb AP on Monday so hopefully that will help. But anything I'm missing?

 

You're prob running really lean and it's pulling timing. A tune will help.

 

correct a tune will fix your issue unless its exhaust, vacuum leaks etc. Also dump the cobb and go uprev

 

There are no vacuum leaks. I did check that. And why do you say dump the Cobb?

 

bc its Chit unless you have a tuner thats AMAZING with Cobb. Why buy a tuning program thats discontinued? That should have been an obvious pass

 

Ok with that being said now, what do you think of the pre made maps that they offer?

 

that no one should used pre loaded maps since everything down to local weather have a factor on tuning. With that being said I would only use it to drive to the tuner and have tuned

 

You can still get maps from their website? They must still offer technical support. I should have done more research before buying it. But what's done is done. And I do know a great tunner for Cobb.

 

then you're ok.

 

youll get most power with a custom tune from Uprev. dont waste your money on the Cobb especially after they stopped R&D on it a few years ago.

but yes, your problem is that you need a tune. with that many bolt ons youre probably running really lean

 

Ok. Well I will plan to get it dyno tuned asap. It just really had me freaked out at first.

 

you'll want to have someone make up a custom map for you on COBB, I wouldn't really go for a retune unless it was custom (not because it's unsafe, just because I don't think it'd be worth the money). I use the COBB on my HR, but it was a custom tune by my neighbor who used to e-tune for COBB. I suggest just making sure a nearby shop has a capable cobb tuner (an individual/person, not the unit). The retune really opened my car up. You'll also need a retune to deal with resetting your MAF. Air intakes mess them up, and COBB specifically says to use the stock airbox with their factory maps.

 

they no longer support the 350z so why should we support them

 

Don't waste your time with the Cobb.It will be hit or miss.
Get a proper dyno tune.

 

Well unfortunetly I already have the Cobb unit so I am kinda stuck with it. Cobb can't be that bad. I mean if the person that is tunning it is good, the tune should be good.

 

It could be the intake.

 

When I installed everything, I did one mod at a time then drove it. I did this just to make sure everything was fine. But I noticed the start of the issue when I put the test pipes on. Then it got even worse with the exhaust and now finally the worst when the V+ was put on. All the mods were done the same day, just one at a time.

 

And you know this how? Before and after dyno? Or are you just taking a stab in the dark?

 

The good old butt dyno is telling me so. It doesn't pull as hard. Its extremely noticeable. Its not running rough. Just feels sluggish

 

Subject is as old as jesus. Any simple bolt-on mod to a Z will alter both torque and horsepower curves. Sometimes good -sometimes bad.