So, after talking with everyone on the forums, it seems that for my auto, I must go with SCT X-CAL2.  I saw this one coming for a long time, I finally realized it was time to put the Diablo up on eBay.  So I put my car back to its original tune, and order a SCT X-CAL2 through Excessive.  Now, originally I was going to go with Doug at Bamachips, but I wanted to have physical access to the garage and the actual tuner, so I went with Chris. 

So I used up a vacation day (use it or lose it) at Excessive. Spent the whole day at the shop.  First off, Chris does a few pulls with no tune to get a baseline with the Magnaflow Dual Y pipe kit and AFE, we were at 180RWHP. Not bad with no tune.

So now it was time to do some runs with the SCT, and start some tuning. The first couple pulls were excellent, we hit 193 RWHP, 210 RWTQ. Now I was grinning ear to ear, if you remember correctly, last time I posted my dyno it was 193 STD, and this is 193 SAE, which to translate is 199.8 STD. Unfortunately, Chris was concerned and said the car was running way too lean…so back to the drawing board.

Let me first say Chris is very anal about his tunes, and he takes his time and never gives up. After about 5 more pulls, my final numbers are:

• 190 RWHP (SAE)
• 203.5 RWTQ (SAE)

I was hoping to get back up to 193, but it was not going to happen. Now before I got frustrated I kept in mind that stock, the auto is around 170RWHP, and I am running 20 HP over that, so that is very good! I am wondering what is going on with my TQ. I was expecting something closer to 210 RWTQ but perhaps after some more mods.

Now for drivability, what a difference!!! Looking at my dyno’s, my TQ curve is much cleaner and not “funky” like it was on the pred. My shift points are firmed up now too and I can really feel the car take off even more than before.

I have a few dyno sheets to post up on this page so please check back again for them.  My goal is really to get the TQ up as after seeing Scrming's stang, I think I should be in his ball park after a few more mods and some more tunes. 

At this point I need to really thank some of the people on the forums I frequent at that provided me a lot of good insight on my car, and what direction to take with it.  These guys are good friends and are always constructive and helpful.

• MSP
• Scrming
• Jimp
• Zodiac
• Excepcion13
• Hamidlmt
• Burdweiser
• TJ06
• Afixer
• Fazm

There is definitely more to mention, and I am sure I will amend this list as time goes on.  But I talk to these guys on a daily basis and they have been great!  So what is next after stage IV, well only time will tell, but I can tell you I am always up to something with Stella!