For those not in the loop, JBR and HTP now have 3.5" intakes for the 3 AND 6 (OD 3.5" ID 3.37")
JBR site is not updated yet but a full 3.5" silicone piece is due shortly
You will need to relocate battery unless you have a small battery and possibly ECU
Im thinking of going the 3.5" as I have a small battery and will report back with any gains after my retune for those interested, will also have full3aeros for sale shortly
Intake Systems : James Barone Racing, Custom Fabrication
MAZDASPEED - Hi-Tuned Performance Products