I have manual. No probs peeling out, barking on 1-2 and 2-3 shift. Don't think you can chirp tires with auto, even in manual shift mode. Manual ... nuff said.

 

so adding a crawford plenum would not help my low end, i read somewhere that it works best at the 4-6k rpm range.
from all the replies i'm pretty much sol, because of the 3" exhaust upgrade! so what do restricters do, i got 2 in line with the 3" line. sorry for all the questions, i'm a MOD newbie.

 

I get off the line chirp a lot- especially in cold weather. More on some roads than others. It seems that the lower air restriction may be causing a reduction in low-end torque. But if you've only driven your car with the mods in hot weather, it may just seem slower with your mods. Have you had your car with the mods through the winter? Just a thought

2003.5 5AT
Premium Package
Tire/Wheel Package
K&N Filter, Z-Tube, EGK

 

no, i just got the car in april, only have 1700 miles.

 

Oh well that's part of the reason why your low end seems to be bad. You haven't fully broken the car in yet. It won't really open up until @ 3K and it gets a little better after that as well. Right now it's running tight, esecially at low end.
Additionally, the lower your air restriction on the exhaust side the more reduction you have in low end torque because of lower back-pressure. But you make up for it at higher RPM's

2003.5 5AT
Premium Package
Tire/Wheel Package
K&N Filter, Z-Tube, EGK

 

Try the ecu reset too

2003.5 DP 5AT Sedan (E-thing but Nav)
14.2 @ 97.18
Injen CAI
10 Wire Hyper-Ground
Crawford Plenum (V4)
UR Crank Pulley
Polk ex-3500 Tweeter Upgrade/Shock Sensor/H-Liner Under Hood

 

what about this technosquare upgrade what is that going to buy me at the low end as well as the crawford plenum, any help with those.