Yes....look at the first document you posted. Under Steering, 14.7:1 Sport-tuned steering gear, there is an open dot, representing "optional" under "G37 Coupe Journey", nothing under G37X Coupe AWD, then a solid dot, representing "Standard" under the IPL and 6MT variants.

And if you scroll down to the Sport Package description, it reads "14.7:1 Sport-tuned steering gear (G37 Coupe Journey only)"

Infiniti has conflicting info, look at the Sport package description under tires

• 19 x 8.5-inch (front) and 19 x 9.0-inch (rear), split V-spoke aluminum-alloy wheels with 225/45R19 (front) and 245/40R19 (rear) W-rated summer performance tires

Yet up above it says the xS comes with: 19 x 8.5-inch, split V-spoke aluminum-alloy wheels with 225/45R19 all-season performance tires.


Their descriptions are generic, not model specific.

 

Just my 2 cents, I agree that the OP should have taken a longer test drive. The S is going to be more of a spiritual ancestor to the IS300. Anytime you add AWD you add weight which really hampers the toss-ability of the car. The XS is nearly 3800lbs, shes a big girl ;-).

I had some similar complaints, which I addressed with a Coupe RSB. It really helped tighten up the steering and flatten out the chassis. The stock RSB is like a spaghetti noodle.

Also, reset that ECU. Out of my complaints for the car, power is not one of them. There are a few TSB's that can reduce the tranny/throttle lag. Mine "sh*ts and gets".

As somebody else posted, the G would hand that IS300 it's as*. Absolutely no contest. The G's heft and composure at speed may make you feel it's not moving that fast, but it is. One test you can do, is go test drive a different X model. Maybe something is up with yours.

 

My 2 cents here, the Lexus IS a smaller car, IMO smaller the car the faster it feels. I got a 6MT rwd 2009 sedan and I geniunlly believe I'm in a rocket when I downshift (am trying to rev match) and floor it. Btw I do this very not so often at all, no sacarsm here either.

To be honest I got the car for the simple reason of it being the usdm version of the Japanese 370 gt skyline series.... Having a VQ engine this amazing was a plus, the outside looks of the car was a plus (to me this car looked and look much better than other sedans out there). I agree with Rochester, the inside lacks "the luxury", even a "sporty look" but personally to me this is just a Nissan.
I'm 23 and I read somewhere that the target age for this car is older ladies and gents (like 40-50+).... I have no clue where I read this nor I know if it was a hoax but I like very surprised. Living in Canada... You do see a lot of "wiser" people crussing around in this car on "slow " right lane.

Now X= must have for winter. I don't believe that, and I don't want to lol... Going up hills could get trickier... But trying an X vs 6mt.... Was as clear as water to me.

 

Is it possible he could reset the ecu and have the car relearn how he prefers to drive?

Also maybe a transmission update is in order?

Just throwing some stuff out there, as he already owns the G

 

Absolutely. The car defaults to a very conservative tune when you drive is easy for a while. Take it out and beat the crap out of it for a while. It changes everything! After a track day, the throttle is very sensitive and trans shifts very firm. A few days or so later of normal highway driving it calms down a bit. The key is to drive it like you stole it for a few days to keep it in "aggressive" mode.

 

Will just the rear sway bar from a non "x" G37 make the car more fun or do you need to go all out with something like hotchkis front and rear?

Will adding just the rear sway bar from a non "X" G37 make the car too tail happy (which I do not want) or will it just settle it to be neutral? I dont want to turn it into being unpredictable going around turns, as I dont want the tail to start swinging.

Will the sway bar really make that much of a difference daily driving or do you have to push it to feel the difference? Its just a big car, its hard to believe that just a rear sway bar from a none "x" G37 will transform it that much.

 

The part number for the "S" and non S sway bars appear to be the same. This was a question though.

Mine is from a "S" Coupe. It will absolutely NOT make it tailhappy, it simply changes it from a heavy understeer car to a not so heavy understeer, definitely more neutral. I had it running Road America earlier this year, and the difference was night and day. Do a search for my posts, you'll see my reaction to the change.

The install was super easy and worth it. It increased the rear swaybar by 7mm. That's HUGE. The front bar on the X is large at 31mm (IIRC), so the Coupe's 24mm Rear balances it out very well.

 

IMO, the better move is aftermarket front and rear. I base that on the personal experience upgrading a 6MT with Eibach sways, upgrading from the OEM sways that you are considering. You can get a new set of sways around $350 to $400, and worth every penny.

No, you don't have to push it to know it's different. But you will be taking turns faster and with more control simply because you can, and it will feel totally normal. More control at higher speeds = fun.

Of course, it will help to have 3-season tires. That's kind of a given.

Notice how many people here recommended you upgrade the swaybars to address your concerns. If not convinced, you certainly seem interested. And since you're probably not getting rid of the car, seems like a slam dunk.

 

Good thing I paid more attention when reading specs for the sedan. I went through the entire spec sheet, looking closely at the details. You are right, the XS coupe is somewhat watered down, not as much as the XS sedan. I suppose they have to appeal to the masses.

 

So for clarification... what I'm reading is that the only thing more worthy about the xS Coupe over the xS Sedan is the BBK, whereas the steering rack, sways and suspension are exactly the same as the AWD... right? For some reason, I thought the xS Coupe got all the sport upgrades except the manual transmission, but not so.

There was a brief moment before buying my Sedan, when I thought I would be OK with the Xs Coupe. Sure am glad I made the right decision.

 

In case you're interested in just doing the Coupe RSB instead of the entire set, here is a post with instructions:
https://www.myg37.com/forums/g37-sed...awd-sport.html

I personally remember looking at the Hotchkis kit before going with the Coupe's RSB, and if I recall the front install for on the AWD looked like a PITA, that being said I didn't attempt it.

The RWD front install looks like a 10 minute job! I would have done that in a heartbeat.

 

I did the same thing on my G37X. I bought a 370Z rear sway bar off of eBay for $50 shipped and installed it. It took the majority of the understeer out of the car and made the car feel more neutral. I can now steer with the throttle if I like and the rear end is much more predictable.

In my opinion, there really isn't much of a need to upgrade the front sway in the X as it's a beefier bar than the RWD models.

 

I came away with a different conclusion.

My understanding [now] is the XS coupe contains the following 'SPORT' bits.

• 19 x 8.5-inch, split V-spoke aluminum-alloy wheels with 225/45R19 all-season performance tires
• Sport-tuned suspension with upgraded springs and double piston shock absorbers
• Viscous Limited-Slip Differential (VLSD)
• Sport brakes (BBK)
• Sport front fascia
• Solid magnesium paddle shifters
• 12-way power driver's sport seat
• Aluminum pedal accents

I knew 100% I didn't want a coupe. I just got rid of the camaro some months back and was sick of dealing with reclining seats to access the rear. If the G came in 5 dr wagon/hatch arrangement, I'd be all over it. Figure something like the ex35 or fx35 with the 3.7L engine, 6mt, sport suspension. I'm not sure such wagons even exist.

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EDIT: I just looked again at the infiniti site for the Q60. The table layout is skewed. The columns for the dots are all shifted left one column. This explains much of the confusion. I even checked in 3 browsers, firefox, chrome and opera. All display similarly.

 

Will adding the thicker oem rear sway bar from a non "x" help at all with highway stability?

 

If you're going to get a non-aftermarket Sway bar get the 370z one.... The non-X sway isn't much of a difference IMO