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Discussion Starter · #1 ·
Hey everyone, I just bought a 2021 STI and what started off as a mild build has quickly escalated because I'm a giant man child with no self control. Below is the current build list:

Grimmspeed 3 Port Boost Controller
Grimmspeed AOS
Grimmspeed Stealth Box Intake
4th Cylinder Cooling Mod
Cobb AP
Cobb Catted downpipe
Cobb Up Pipe
Remark R1 catback
Killer B Headers
Perrin Recirculating BPV
Torque Solutions Fuel Rail
ID1050x Injectors
Radium FPR kit
AEM Fuel Pump
Boost Lab 54x OEM location Turbo

Last piece to the puzzle is my TMIC; undecided between the ETS (which I'm leaning towards), Perrin, or the Wagner Comp? I love the Process West because it's the best looking but I'm here to see if anyone has the pro/cons on these? I've been unable to find any recent posts... Appreciate y'alls help!!
 

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Killer B has a great bit of research, for a TMIC, it's actually better to stay with your oem one, the bigger ones wont recover as fast. they have plenty of data to back up this claim
 

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Like everyone already said stick with OEM. It's way better than you think (and I thought). If you don't believe us look at this recent thread:

 
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