Review on Corsa 419637 Non CARB Compliant Mustang by Marcus Akram

Installation was great and looks clean. However, getting the hose over the inlet is a little tricky. The included instructions suggested using a flathead screwdriver as a lever. The box is well sealed. You don't hear a lot of traditional vacuum noise, but what you do get is much more aggressive and better-sounding acceleration. Throttle response has increased significantly, especially in Sport mode. Although disconnecting the battery is recommended, I didn't do it and didn't get any CEL warnings. AFR stayed at a normal level of 14 and all other sensors appeared normal. I have no ringtone set, a strict default ringtone. I highly recommend it. If you don't already have one, I suggest buying a 5/16 wrench to tighten the clamps. The one I purchased is listed below: Crescent CND3V 5/16" Hollow Shaft Nut Driver with Pillow Grip, Red/Black.