Originally Posted by maytag (Post 614065)

So I'm moments shy of buying a PST2 for this same purpose.
I understand from other threads that I'll need a 996 VIN and associated password, in order to load that 986 flash to my 986 DME. (Correct?)
In anticipation of this, I called my dealer today to see what it'd take to get them to help me with that VIN and password. No joy. They basically mocked me, that I'd think they'd just hand that out. They're kinda dicks over there.

So, question: some of y'all who've done this (TRK?) Do you have a VIN and associated pass code you can share? And if not, do you know a dealer who is supportive of this, who I could contact?

I'd sure like to know I've got a clear pathway before I pull the trigger on the PST2.

Sent from my SM-G970U using Tapatalk

Originally Posted by itsnotanova (Post 614067)

Your Dealer in Utah is the worst in the country. I've heard multiple stories from 986 owners. Try Porsche of Plano. They're pretty laid back there and might give one to you. I have a 996 ROW tune on my street boxster but my DME and immobilzer came out of a 996. Pretty simple switch, but I'm not sure about putting a 996 tune into a 986 dme. The immobilizer will still know it's a boxster (I think). I just put a 996 intake on my 2.7 rallycross boxster and was going to also switch over to a 996 tune. Give me a few days and I can tell you what happened

Originally Posted by itsnotanova (Post 614101)

LOL. I haven't been called a stud in awhile. Text me your vin at 512-925-9171. I'll get you a code when I get one. I have a source but I normally only ask him for codes for myself. It's a source I don't want to wear out

Originally Posted by 911monty (Post 614104)

Hey Maytag; I notice no one has brought up something that should be mentioned here. I believe you have said that Utah smog for your year, like Ca. consists of OBD interrogation. Since the diesel gate saga, Ca. smog test checks that the OBD program has not been altered as this will be a fail. You might want to check this if you license your car for street duty.

PS Dealers especially VW/Porsche dealers in an "enhanced smog inspection" state will be far less likely to supply info to alter the OBD programs which could open them up to litigation. Unlike a State that does not do smog testing.

Originally Posted by maytag (Post 614102)

Do I need the code for MY VIN? Or for the VIN of a 996 whose flash I want to load? How does that work?

Originally Posted by redbox986 (Post 652616)

If anyone is still interested in this mod, I have done it and run it successfully on my 2003 986S without any problems for over 2 years.

I used the stock MAF holder and coupled it with larger diameter tube on either side, so there is an unavoidable loss through the MAF if you want it to run properly. I still feel that the flattening of the torque curve and power increase is more than worth it.

Originally Posted by redbox986 (Post 652616)

If anyone is still interested in this mod, I have done it and run it successfully on my 2003 986S without any problems for over 2 years.

I used the stock MAF holder and coupled it with larger diameter tube on either side, so there is an unavoidable loss through the MAF if you want it to run properly. I still feel that the flattening of the torque curve and power increase is more than worth it.

Originally Posted by Nitro V8 (Post 657234)

I wonder if a re mapping session on a rolling road can tune for the 987 maf rather than having to get an actual 550se tune put on the DME?

Originally Posted by Robert986 (Post 657237)

That´s not the way to do it.
What you actually need is a new MAF-table for the larger MAF-tube, thus the DME can understand the MAF-signal again. Then if you really want you may map it on the rolling road, but I think the DME will manage this by it´s own with such small changes.

My tuner made me a new MAF-table just for this, you may inbox me for contact info to my tuner, I´m sure he can help you with this table.

Originally Posted by The Radium King (Post 657241)

the only real difference with the SE tune is the maf table to compensate for the larger tube. dunno what the tuner charges but it's a 15 minute job for anyone with a pst2. but you need the programming codes. not sure if tuners require these codes to get in.

Originally Posted by Nitro V8 (Post 657058)

Old thread revival!

I have collected all the parts together to do the 74mm tb conversion on my 2003 facelift s.
74mm tb, 996 plenum, 80mm silicone and Ali tubing, various jubilee clips.
I also have a modified 987 airbox and 987 maf tube and maf.

A few questions to those in the know
1) Will I still get improvement in power by fitting the 74mm tb and 996 plenum but retaining the 986 airbox and maf?
2) If I fit the 987 airbox do I need to fit the 987 maf or will there still be benefit if I retain the 986 maf tube?
3) If I fit the 987 maf does it definitely need a re flash to make it run correctly and not throw a cel?

Thank you

Originally Posted by NotthatJake (Post 657833)

I am new to this so sorry if this is incorrect, but where did you find the 74 mm TB that fits the 986/987 IPD plenum?
I have the original 2.5 tb but am trying to find the upgraded TB and am not having any luck so I am curious if there is a throttle body spacer or adapter that is out there to mate these two? Have you heard of an adapter?