Well...all of this is opinion so every one will post differently. Personaly..On Intake
and pulleys I got the AEM
. Exhaust I got TRD
and I love it..Tanabe makes great stuff too! I have the Tanabe strut bar..The Injen Intake
is great too.
It just depends on what kind of power you want.
As said before Injen Intake
is good for high end power and AEM
is good for low and personally I think our celicas need more low. As for header I would go with TRD
or Trial. For most things I would go with TRD
when you can. Expensive but it's good and made by Toyota