exhaust siz? [Archive] - GrandAmGT.com Forum GrandAmGT.com Forum > GAGT - Technical - Sponsored by www.MilzyMotorSports.com > Technical Q&A > exhaust siz? PDA View Full Version : exhaust siz? 04alero10-30-2004, 07:22 AMI was wondering if anyone knew what size the exhaust pipe would be on a 04 alero with the 2.2l ecotec? thanks in advance, Nick Rba00710-30-2004, 12:36 PM2.25 i do believe. tenspeed10-30-2004, 10:30 PMSounds right to me too. juanvan10-30-2004, 11:18 PMyep its right.. vBulletin® v3.7.2, Copyright ©2000-2018, Jelsoft Enterprises Ltd.