^ Not sure if I agree with that completely. Yes our cars are very refined 6-cylinders, but there is room for improvement! For example plenum spacer...

 

If it's a 6 spd. get: a spacer, mrev2, intake, hi-flo cats, z-tube, exhaust, and finally, a tune. All this will give you a nice boost in power in a car that already has a significant amount of power. It's not meant to be a boy-racer but, a nice entry-level luxury car. Search for the 411 on all the mods you want to do and have fun.

 

I am just getting to know my G35. Before this car, I had a GTI 20th anniv with a turbo charged engine that was fairly easy to gain hp with some mods. I would have to say that with the G35, you probably can get a good amount of hp and torque with exhaust,headers,plenum,and some bolt ons. But, if you are willing to save up some cash, I would suggest to get a forced induction such as a turbo or sc. probably the best way to gain some power.

 

yeppp

 

Yeah but if all that was so effective they would have installed it from the factory. The new G37s didnt get more power from a spacer. The ECU is already mapped and will only allow a fraction of the gains in our cars. That's why when ever you install CAMS, TURBO'S, AND SUPERCHARGERS, they also remap and upgrade the ECU. Programmers do just that but there aren't a lot to choose from. Bullydog and Hypertech have tunes for our cars but don't offer much. Hypertechs programmer gives 9-10 hp across the entire powerband for almost $500.00, not gonna happen lol. Bullydog advertises 25 hp/30pft but has know dyno results to back it up, it cost around $350.00. I have decided to just leave my car as it is from the factory because the engineers for Nissan know what they are doing, they designed these car to perform at there best with there parts on then, that's why when we start changing things on them they don't run the same. Just my 2 cents

 

Wow that was an idiotic post. Do you seriously believe that nissan spent all the time in the world on every piece of this car that it is all as perfect as it can be? Of course not. They don't build the car trying to tap out every last piece of hp and design it perfectly. Why? Because it would cost them way more time and money than they would get in returns, nobody cares if they got 50 more hp but charged 10k+ more to cover their research and development costs.

Nissan made a great car, but it is far from perfect. And believing that these aftermarket companies that post solid proof that their products increase power and many people running them showing no cases of them causing failures is just plain stupid.

 

theres at least one of these every week

 

oh ya OP, don't forget the only mod that really gives you a good power increase.... yup a CHIP!!

 

You know guys, as an old guy. I remember when the V8's 327, 350, 289, 260 (I've included both chevys and fords here) weren't putting out alot more horsepower than our sixes. The fact that these new sixes are putting out the horsepower numbers that they are is impressive. My personnel feeling that the problems that Nissan has had with the rev-up motor is trying to squeeze every bit of horsepower out of these engines without going FI.

 

Hey easy now, I gave my opinion only. And you don't see people spending money on exspensive sports cars and then going and put cold air intakes and exhaust on them. The cars are tuned and tested to run according to there specs, who are we to decide we are gonna change what they have done? If so, why don't you build or design your own engine instead of tampering with there's? Look , you can do what you won't with your car i don't care, all I said was that on our cars there is not much room for improvement without going inside the engine or spending some serious cash. My statement was not idiotic, I have spent a lot of money over the years on aftermarket products for minimal gains. But after a while you just have to get the point that they are just not worth the money are time you put into them. Intakes provide 2-5 hp most if any but do nothing for gas milege. It has been proven that with most intakes you actually loose low end torque , with an aftermarket exhaust you increase the sound only on most high performance cars because the exhaust are already free flowing. Why would you spend $1500-$2000 on an intake and exhaust for maybe 10-20 hp witch you will not even feel and won't increase your 0-60 time or 1/4 mile times? And most of the time your gas milege suffers because you stay on the gas listening to the sound of the combination. You can't stack hp so the more you keep putting into the engine the less you will gain from each individual aftermarket part product. This forum is for dicussions and sharing information about our vehicles, none of us are specialist in this field so we just have to go by past expierience and other peoples views on the aftermarket world. So think about that before you start calling peoples statements "idiotic''.

 

With such blatantly wrong statements as this how do you expect me or anyone else to take any of your opinions seriously??

Everyone has their own ideas of how much power is minimal, but you are absolutely wrong when you say bolt on's don't increase 0-60 or 1/4 mile times. Hell there are many many many threads, drag strip receipts, dynos proving that theoretically yes the mods will make them go faster and real testing proving that they do go faster. What are you even trying to argue?

If you are arguing it's not worth the money, everyone knows car modding is a money pit and gains nothing but your pleasure which is why all of us are here. If you are continually trying to say our cars are perfect as is even you just admitted they are not, they are great cars and great engines but far from perfected.

 

^At least one of your statements was right. First of all, the majority of cars produced today are detuned for economic purposes. There's room for improvement with every vehicle that is produced. My slow 5AT has gained at least 20-25HP/TQ since I've had it, so yes the mods I've added were worth it, and my 0-60 has definitely improved. Around here, there are way more modded sports cars and exotics on the roads then there are stock.
If that were the case, then there wouldn't be aftermarket items available that allow the engine to breathe better and produce more power. Or valvebody upgrades that actually increase the lifespan of the transmission. How about bad piston rings that allow the engine to consume oil at a fast rate. I do believe the VQ35 is a good engine but it is by no means perfect.

 

OMG what is the deal man? what are you arguing about? I was talking about intakes and exhaust lol. I admitted that turbos and superchargers made real power but cost a lot of money. You are not gonna put an intake and exhaust on your car and all of a sudden become the man to beat on the street or track. I'm also a mod addict and through that I have expierienced witch ones work and witch ones don't. The car to me is perfect the way it is because it's a great performer with very good gas milege. Once you start adding real power to any car you can throw gas milege out the window. It all depends on your lifestyle and how you view your car. Mine is a daily driver and is used for going to work, vacations and cruieing around, yours may be used for racing so our needs are different. I think that more people share my my opinion than you think lol. Take it easy man we cool lol.

 

What I'm saying guys is that it will cost a lot of money to really get these cars to move. You will have to install a performance part that comes in early in the powerband. Most intakes and exhaust systems kick in around 5800 to 6000 rpms or more so you will never see the gains in daily driving at 2000 to 3000 rpms, You would have to be passing another vehicle or racing. It takes a lot of hp just to gain 1 tenth of a second in the 1/4 mile. I agree that if they installed all these aftermarket parts from the factory we probable couldn't afford these cars lol. I also agree that there is room for improvement with every vehicle but not without high cost, plus every vehicle has a limit to the capacity of hp/trq the engine can withstand, that's why when you push it past that limit something eventually happens.

 

Haha well now it seems like you are agreeing with me so I have no clue what we are even discussing now. But I think we both can agree that these are great cars and any improvements over stock are going to be quite costly and it is all up the individual owner as to how far they want to take it.