I got the Sport because of the LSD. I was thinking of swapping my own in, but I don't want to void the warranty, not yet anyways

I think the sport package is actually a very good deal. I agree it's a must for a sports car. You get big powerful brakes, lightweight large rims with sticky performance tires, front and rear spoilers (maybe aerodynamically useless, but hey they look good), and the synchrorev which reduces clutch wear and enables smooth downshifts. Heel and toe is good, but for average daily cruising in the streets can get exhausting and cumbersome.

Re: warranty. You never know what Nissan may argue. They can argue that the upgraded LSD increased torque stress in the drivetrain, causing the driveshaft U joint to snap, or the transmission to grind a gear, or the crankshaft to throw a bearing, etc..... Don't you remember the whole GT-R fiasco?

Thanks for the responses so far guys. I wouldn't mind getting a torsen unit, but again, I'd be afraid that they would void my warranty.

It really depends. Obviously, if you make a warranty claim cuz your power window is not working, or your AC compressor blew up, that's fine. If it's something drivetrain related, engine, transmission, drive shaft, differential, half shafts, etc... they might give you a hard time. Of course, this may only happen if for one reason or another they opened the differential cover and discovered the upgrade.

bingo! how often are they going to open your diff cover ! ;) and if you know that's going to happen, swap back.

I couldn't be happier with my base model. My wife is the primary driver and she DOES NOT need 19 inch wheels. Without a doubt the best sports car I have owned. She does not need big brakes either. :tup:

Warranty really shouldn't be an issue with a LSD.

My main concern with a LSD, other than performance, is how it is in terms of noise and regular driving.

For those characteristics, I'd look into a quaife, cusco or carbonetics LSD.

Love my base model, did not want:

- Leather seats: a pain to keep up, lexoil application plus when wearing shorts you stick to it.
- 19 inch wheels: harsher & noisier ride and tires are more expensive.
- Spoilers: in my previous car a 2004 Vette the front spoiler (although spring loaded) scraped on everything. So I had to slow down all the time to prevent serious damage.
- Navigation: Sorry but I am an old fart and prefer paper maps, plus my iPhone has a crude navigation feature.
- Electric seat: since they do not have a memory feature they are worthless to me.
- Homelink: In my condo we use key cards so it would have been of no use to me.


On the other hand would have liked the LSD, auto dimming rear view mirror, and the Bose system.

What is LSD?
Is it a somekind of clutch for manual gear Z's?
sorry for noob question... :-P

Limited slip differential.

in a nutshell, it enables transfer of torque from one side to another for better power delivery to the wheels. that's just the concept. you might want to try howstuffworks.com, wikipedia, youtube, etc. there are tons of info out there.

It's pretty complicated because there are open diffs, limited slip diffs, 1 way, 1.5 way, 2 way, clutch type, gear type, hypoid type, viscous...

well i got the sport package mainly because of brakes, rims, and syncro rev match. im not 100% sure and im not a professional track driver, but i heard the synchro rev match shaves off a second or two and isnt that a big difference on a track?

srm won't shave off time for an experienced driver... benefits are big for more novice drivers and I'd believe saving a second or two there b/c it allows you to drop a gear in a turn and be ready to accelerate out of a turn as opposed to waiting/coasting... for experienced driver that can safely downshift in a turn using heel-toe to rev match, there is always the risk of fowling up a heel-toe, which could mean losing control of the car... srm eliminates that risk... all in all, srm is a nice option to have regardless of skill level

You guys lost me at torsen.:confused: