Found these old rec'd Evo X bolt-on mod levels from RRE
 

Do these still hold (obviously prices have changed)? Comments? Wrong Place?

Relevant part excerpted below:

By popular demand, here is the GSR list:

EVOX GSR 350hp max goal

Step One 300-320 WHP

Cosworth Drop in filter $43
Real 3� Cat Back Exhaust $600-$800
Some kind of cat option $150-$280
3 Port Boost Control Solenoid $95 installed
Tune $500

~$1400-$1750

Step Two 340-350 WHP

3.5� ETS FMIC $600
Upper and Lower I/C Piping $510
Install FMIC and Pipes $200
Short DP if you didn't have a cat $190
Install DP $ 40
Cosworth or Kelford Cams $975 installed
Retune $200

~$2700

The turbo, injectors and fuel pump are all nicely at their limit. If you have a cat of some sort, stay with the stock DP.

Add E-85 to the above at any stage (2008/2010 map switching or you need a Tactrix Cable and a laptop to switch maps on a 2011-2013 X) Built in map switching for the 2011-2012 is possible, you need to be brave because we'll be forcing in a 2010 ROM into your ECU. If you dont know what that means, google it some. You'll know it wwhen you are ready to do it. No whiners.

RC Engineering 1200cc Injectors $600 installed
Deatschwerks 65C Fuel pump and E-85 Fuel Line $250 installed

E-85 TUNING
E-85 tuning Adds $100 to the original $500 tune if done at that time.
If adding E-85 to a $200 retune, then add an additional $200 for the second map.
If the car was already tuned on 91 and E-85, a retune for parts changes would be $300 total.

EVOX GSR 400hp max goal

Step One 310-330 WHP

AEM Intake $330 installed
Real 3� Cat Back Exhaust $600-$800
Some kind of cat option $150-$280
3 Port Boost Control Solenoid $95 installed
Tune $500

~$1670--$2000

Step Two 340-360 WHP

3.5� ETS FMIC $600
Upper and Lower I/C Piping $510
Install FMIC and Pipes $200
Cosworth or Kelford Cams $975 installed
Retune $200

~$2510

Step Three 400 WHP 91 Octane

Biggee Turbo (Garrett 3076, 3071, GTX, CBRD BBX) $1900-$2300
MXP Wide Mouth (2 piece) Long DP $440
Install Turbo and DP $700
Deatschwerks Fuel Pump $150
Install Pump and Kit $120
Injector Dynamics 1100cc Injectors $495
Install Injectors $ 60
Retune $300

~$4200-~$4600


http://www.socalevo.net/threads/222047-350hp-400hp-goal