New 2004 owner...
#25
if you are getting a T/B i would go ahead and get the upper intake elbow also. the accufab 75mm and upper elbow are good for like 12 HP. and they were about the best for HP. and both are like 480 total
#27
70mm TB and an upper plenum is about the best for a n/a car. Anything larger on the TB, you are going to risk loosing trq and maybe hp due to lower velocity rates through the intake tract.
#29
I wouldnt think you would have to, but talk to whoever you are getting your tune thorugh and see what they recommend.
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Mr. Sparkle
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8/21/15 10:10 AM