tery for e mode. That being said, I Purchased the AA Catted Downpipe for more sound and power. Upon installation the end of the AA downpipe did not fit since it had the flat shaped opening rather than the ball shaped. I was in the middle of returning the item but someone had suggested me to have a muffler shop custom weld a new end piece to the AA downpipe and this worked. The shop cut my oem downpipe about 3 inches and welded it to the AA downpipe and made it fit. This was nice since I can uninstall it if I wanted to in the future. Overall I'm happy with the sound. If you have a g05 45e or 40i and want more sound or performance, the AA downpipe will be perfect. And it doesn't throw a CEL which is the main reason I went with this brand. Can I feel the performance? Maybe, or it could be the butt dyno from the sound. Thanks Mike from XPH for the help. Read LessRead less about Purchased this catted downpipe for my