Members watching: ECU tune - anything physical that's essential to upgrade from stock beforehand?

swrdply400mrelay

Well-Known Member From SoCal
- Threads
  
  26
- Messages
  
  900
- Reaction score
  
  471
BMWAF

Well-Known Member From In orbit
- Threads
  
  70
- Messages
  
  3,078
- Reaction score
  
  4,442
razorlab

Well-Known Member From Hudson Valley, NY
- Threads
  
  29
- Messages
  
  8,568
- Reaction score
  
  16,799
S2k

Well-Known Member From Surrey UK
- Threads
  
  8
- Messages
  
  226
- Reaction score
  
  344
itzTang

Well-Known Member From Socal
- Threads
  
  2
- Messages
  
  811
- Reaction score
  
  784
rottmore

Well-Known Member From illinois
- Threads
  
  3
- Messages
  
  492
- Reaction score
  
  816
gr.korolla

Member From Hawai’i
- Threads
  
  3
- Messages
  
  7
- Reaction score
  
  1
RacerJohnny

Active Member From Michigan
- Threads
  
  3
- Messages
  
  40
- Reaction score
  
  24
charlesr

Member From Reading
- Threads
  
  1
- Messages
  
  10
- Reaction score
  
  5