Zucc

Bad Logic? Yes, IMO. Mainly because when I negotiated my deal, I would not have been willing to pay 9 or 16k more to get the X51. I'm sure the dealer would not pay a whole lot for it either on a trade in. My recommendation would be to be patient. I bet that in a few months you will be able to pick up a GTS at a reasonable price or maybe a regular S with the factory X51.

STG

Sure. I'll PM you

Joec500

You're better of selling your current car and buying a brand new GTS for 115k at this dealer

http://www.porschestlouis.com/

You could justify it by saying this car will hold a better resale

RobC4sX51

Saw that car. Very nice. But I want awd and no CL wheels. And I have had 2 Guards Red cars. Want to stay with silver or blue. Thank you for your input, I really do appreciate it.

Oops, that is the white w gray. Still nice, but not a cab and not a 4!

CSK 911 C4S

At $16K installed price that's a little over $533 per 1 horse power gain.

RobC4sX51

Ok, so what else is there? I did an IPD plenum (interestingly my friend in Cali who sent the PK back -Suncoast took it back, is interested in my IPD), and a SharkWerks Race exhaust (which I'm keeping btw). How much is the center radiator worth at a track day? How about the higher rev capability? If you saw the parts change that's required you would be amazed. I'm not interested in just more HP, I'm interested in what is the best engineering Porsche has to offer within my current car restraints. I believe the X51 is it. Is it worth it? That is the debate.

Penn4S

It's really a decision only you can make, it's your cash. As far as value, it isn't a great value for the small hp gain and you certainly won't get it back at sale. But we are a fickle group here. If this is a long term car for you and you feel it is really a priority then you don't need much advice as you probably knew what you were going to hear.

I have decided to keep my 4S long term as I love the car and don't have any great desires for a new Porsche or other car. I came from 4 previous Porsche TT's so if I was searching for power I would want a big noticeable jump. Not looking for that. Instead I'm going to add the Aerokit and most would call that also a not so wise investment, I installed the Kline Iconel Exhaust also not an economical upgrade and most likely will try the Giac flash for a little more throttle response and sport springs. But I m going long term with this car which will be a first for me with a Porsche after 12 of them.

So how can I give you economical advice ? Do what you want. If this doesn't make sense now use the $16k toward a car of your liking.

RobC4sX51

So how can I give you economical advice ? Do what you want. If this doesn't make sense now use the $16k toward a car of your liking.

Penn4, thanks for your comments/perspective. I appreciate your reply.

fastdiablo

+991 get a GTS! you can change the wheels or swap to 5 lugs.

whoadude

Coming from a guy who has modded every single car he's owned extensively, I gave the x51 some serious thought for my c2s. I personally decided I couldn't justify the cost of the kit plus installation for the minor performance increase.

As I drive my car more and more I actually don't feel like it needs more power either, it's got such a beautiful balance already!

RobC4sX51

Good point too. The 991S is beautifully balanced already.

Thanks to all who chimed in. I knew from the outset that it was my decision but I also knew that it was a huge chunk of change for a relatively small gain, not to mention the intrusiveness to the engine outside the factory. Not one person above "encouraged" me to do it, and I need to let SunCoast know before noon today so as to have it diverted to my dealer. So I am passing on it. Thanks again. A lot of wisdom here.

997s07

The power kit adds horsepower but it takes away low end torque a little bit. It's the nature of the beast of a high revving NA engine with more horsepower. I was about to buy a GTS, got the cash ready to be wired to the dealer then I saw a base Carerra in manual. I asked to test drive it for fun. Guess what car I drove home! There's so much more to the 991 than power. In the end, that power comes in at relatively high RPMs. Not too useful in a DD (if that is what you're using it for). Good decision to abstain from the power kit. You would've regretted it terribly. I know of one local guy and another where I frequently travel to who regret 'upgrading' to the X51. They don't feel it. Sure the internals need to change for a higher revving and better breathing system. But low end torque and a noticeable improvement are going to be absent.

Larry Cable

this https://www.pca.org/classified-ad/312786

NoGaBiker

^^ Wow! Prepare to drop your anonymity! Mex Blue, Carrera Red. Those with healthy doses of self esteem need not apply.

Larry Cable

dont knock the Mexico Blue, having said that, combining it with a red interior is a