Welcome to the ZOO. You have now created a MONSTER.
03-04 Cobra, CB, CAI, 2.76 pulley & a Tune....instant GORILLLA.
Now, when you need a clutch you get the 26 spine input shaft, ( NOT from Liberty Gears though) an LDC Cooling kit, and Spec 3+ for a clutch. I also hope you have MJ's Brace which is sold by BilletFlow for the differential cover, and a set of subframe connectors and you're good to go mid to high 11's with DR's.
The input shaft and the cooling mod along with the Differential brace are real important upgrades for 530 HP. It's a different car now.
R&R plus new clutch....1000.00 or so
Cooling Mod...150.00 plus an hour labor
26 Spline input shaft......300.00 installed????
BilletFlow Diff., brace is under 200.00 and an easy install.
Subfram Connectors are like 99.00 and 50 bucks to get welded on.
I may have over looked something but you need this stuff to drive that car now and be able to depend on it like when it was a lowly 425hP.