Honestly, you'd be better off to sell the current car and buy a 997 TT. Easier to get service from dealers and indys since things are normal, don't have to rely on the fact that the company did the tune right, virtually no depreciation on TT over the next few years, and more power and torque than you'll get with the supercharger.

Plus, forced induction really should not be put onto a car with a high compression ratio, without lowering it and the 997.2 NA motor has high compression.

 

Take Petza914's advice to the bank. He has a RUF supercharger on his 997 so draw your own conclusions.

 

I absolutely love my car and I'd buy my exact car with the RUF setup again in a second due to RUF's reputation, the amount of development and testing that goes into their offerings, and the rarity of them, but I personally wouldn't buy a forced induction setup from anyone else over a TT.

The RUF kit was something like $30k (installed by a PO) if that tells you how extensive it goes. The rarity thing poses challenges if you don't really understand what all is involved with what was done. In fact, I purchased a 2nd complete R-Kompressor kit just so I'd have 100% spare parts for my car and sent the supercharger itself from that kit back to Germany and had it rebuilt so if/when mine blows the supercharger (seals), I will be able to install my spare when I have the original rebuilt again - that's usually not a quick process with the shipping and getting it into the queue over there. RUF lowered the engine compression ratio to protect the longevity of the engine, they use a DME from a TT for the tuning in order to have access to all the parameters needed to properly fuel, time, and protect the motor from detonation, it uses a totally different MAF in order to have a proper value range back to the DME (had to source spares from Europe), they integrated intercoolers into the new aluminum intake manifolds, etc.

I look at some of these other kits out there and see plastic heat exchanger fluid tanks, heat shielding that has to be cut-away to make room for the supercharger or turbo, them using the same MAF with integrated air temp sensor (air temp needs to be taken after the air is compressed as that process generates heat), and then I read posts about issues with high RPM fueling or impeller bearings coming apart in just a few thousand miles, CELs that the owners can't make go-away, etc. Maybe some of these are well-developed kits that work well, but for the cost of one of these alternate setups, and what it could do to the motor if not properly developed and tested, and what it does to the value of the car, I recommend you spend that money on a platform upgrade rather than a bolt-on, as for a few thousand more you'll have something that holds it's value, can be serviced by any Porsche Indy or Dealership, and that doesn't use unique and hard to find parts.

In my situation, maybe with the RUF name my car has a higher value, but that doesn't really matter to me since I don't ever plan to sell it. The only thing that really mattered was that I could insure it for what I have in it and for what a comparable replacement could be obtained for, which I've done with a Grundy Agreed Value policy. I'm not sure you can make the case for significant increased value with offerings from the other suppliers, and the modifications might actually prevent some of them from offering coverage on the car. The policy I have on this car actually has it classified as an Exotic (being 1 of 2 in the US RUF Registry), which is different than how my other Porsches are on the same Agreed Value policy - 914 and 928 are Classics and the Cayenne and wife's 997 are Regular Use vehicles.

Hope some of that additional detail is helpful and taken that way, since that's how it was intended.

 

Jeez. Way, way more involved than I had ever imagined. But as best I recall you really haven't had any problems with it. Am I right? Either way, probably one of only a handful in the world.

 

I'm not sure the price delta between the value of your car, the cost of the supercharger kit, supporting mods (if any), installation and tuning, and a 997.1 or 997.2 Turbo, but I feel that it isn't really worth extensively modifying a street 911 when there's always a faster street 911 offered from the factory. That and the fact that the factory-offered faster 911 will likely offer fewer headaches/better reliability, and more time spent enjoying it. This is what brought me from a Subaru BRZ back to a 911; the performance wasn't getting it done and another $10k to get from 200bhp to ~300bhp with questionable reliability just wasn't appealing.

 

No, it has been great, but I think that's part of the RUF legacy and the extensive development and testing they do before taking a product to market, and why they have the reputation they do.

 

True. The only problem with that is there's not another car that offers the package the 911 does, and though the newer 911s are faster street cars (maybe), I neither like their looks, nor all the tech being added into them, so I'm keeping this particular car as long as I can make it last and gov't regulations let me.