I feel my clutch slipping when I launch and sometimes when I powershift into 2nd, my car is around 307 at the fly. Is this normal or should I look at getting a replacement clutch?
It is a new car to me so I just don't know if its normal to slip at the fly before on the road, but I would assume if the clutch grabs like its supposed to and my tires aren't going to slip then the engine speed would just drop and the car would go as fast as it can from there. Is that right? This is my first 4WD car.

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Also, an unrelated note, I read that paying attention to turbo warmup/cooldown is very important if I am planning on keeping my stock turbos alive. Does that mean I should just not run heavy boost until my temp is up to 250ish or what?

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Also, it seems like piggles are the way to go in terms of DP modification. I know the exhaust note changes and it helps with lag, etc., but how much is the associated power gain? Apparently it isn't expensive (including O2 sensor relocation), anyone have a guess as to how much? I am going to replace the cat back at some point (most likely with the Borla), should I wait until then to deal with piggles or does it not matter?

Any info would be very appreciated, thanks.

 

Yes you'll probably want to get a new clutch down the road a little.
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250 is high to wait for. It is important to wait though. I usually wait at least until the first tick mark on the gauge. And let it cool down if you ran it hard
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Piggies are virtually free. Anti-foulers, welding and labor (Things most people can do on there own) are the only costs.

If it were me I'd save up for turbos and do it all when the engine is pulled.