Anyone with experience with the 450 HP kits?
 

I doubt I will do this, but am curious after seeing the kit available. Gert at Carnewal has a 450 HP Factory Power Kit For P93 Turbo, it has replacement turbos, tips, oil cooler and S tips.

450-HP-Factory-Power-Kit-For-P93-Turbo

Has anyone had experience with these HP upgrades? How does impact the engine? Any driving issues (like stalling) that are normally associated with HP changes? I have 75,000 on mine, would doing this open a Pandora's box of problems?

The kit costs $15 grand before install. What would it cost to stick one of these kits on? It's factory and that always sounds good, but it is it the most economical and/or best option?

I guess finally, I know more is better in most cases, but with a 993TT, is this not the case? It has plenty of HP, isn't stock preferable?

For the most part your stock internals should be good for up to about 500 HP. Beyond that is when the added stress will take its toll on standard parts. You might want to get an adj. fpr just to be on the safe side and not let things lean out. Next step would be injectors, ignition, etc.......... Have fun

This is just the standard x50 (or whatever it was called) package that was offered for sale on new 993TTs in ROW.

K24s, ecu, and tips.

Should work fine and drive like a faster but more laggy NA turbo.

There are cheaper and quite frankly better ways to get 450bhp.

cost to install is likely $1k or so.

Yep, what they said^^ Crazy to spend $15K on that

Get it mapped by Todd, go hybrid if you want, put an oil cooler on and you will have $10K to blow on coke and hookers............

In my research....echo all above. I did protomotive ecu, 100 cell race cats, bypasses...that will do just about 450hp.

If you still feel compelled the k24s are really 90's tech. hybrids are best of both worlds/less lag.

400 to wheels Easy
 

Agreed $5k or less, Send Ecu to Todd ( 96 or 97), Rebuild 16's (16g's), 710 Diverters, Manual boost controller. Ive had at least 5 993tt's, all done a little different, This set up was easiest & VERY fast, this is a conservative loaded Dyno (probably 20% loss), I'd say 470Hp Easy on 91oct. You must set boost on Dyno in order to Tune right & check AFR's.

This specific kit was somewhat of a bargain up until recently. One of the cheapest ways of getting the K24s. But now that Porsche has doubled the prices of this kit there are much better ways of getting 450-460HP. For example the cargraphic stage 2 kit for about half the price including installation.

The car I just bought has it and the car runs great!

My advice (and remember I have a Ruf Turbo R) is to leave it stock. There are few places where 400HP isn't enough, and the small delta to 450 won't make a huge difference (except to your wallet). And while these kits all tend to be perfectly reliable... I'd stick to stock for even better reliability. But, trust me, I understand the temptation for more. And more.

yup.

I had a heavily modified cobra before the 993. while a crap load of fun, even 700rwhp became unimpressive after a while.

My opinion:

some exhaust mods
some suspension mods
and fresh maintenance (plugs, filters, diverter valves, etc) is enough.

I got lucky and got a great price on a Turbo S ecu for the supposed 424bhp.

I figure with the S ecu, 200 cell sport cats, and muffler deletes, the car makes maybe 430bhp.

Total cost for me was $2,750 (got the muffler deletes with the car, but add $600 if not)

What's the best kit to improve low end torque? By modern standards a stock 993 Turbo feels quite weak on lower revs.

Keep the revs up! :)
Remember you are dealing with old tech 8:1 compression ratio. If you don't have boost, you got nothing.

I can't understand what you are saying .....:)

supercharged ls1 conversion?

Wow guys this is great info! Thanks!