Nissan 370Z Forum - View Single Post

gleonard · 12-29-2009, 07:26 PM

I recently had an aftermarket CBE installed (less than 30 days ago) and have recently noticed a muffled backfire/afterfire upon deceleration. I never hear it when I am hitting the throttle, and usually hear it when I let up on the gas to shift gears.

Is this caused by an exhaust leak? is the car running to rich? Is this normal, does anyone else have the same sound?

I contacted the company who I bought the exhaust from (they also did the install) but I haven't heard back from them yet. It's been a few days so I thought I would try to get an opinion from the experts on the forum.

Any help would be greatly appreciated.

12-29-2009, 07:26 PM	#1 (permalink)
gleonard Base Member Join Date: Jul 2009 Location: Los Angeles Posts: 196 Drives: 370z Touring/Spt 6sp Rep Power: 15	afterfire or backfire? I recently had an aftermarket CBE installed (less than 30 days ago) and have recently noticed a muffled backfire/afterfire upon deceleration. I never hear it when I am hitting the throttle, and usually hear it when I let up on the gas to shift gears. Is this caused by an exhaust leak? is the car running to rich? Is this normal, does anyone else have the same sound? I contacted the company who I bought the exhaust from (they also did the install) but I haven't heard back from them yet. It's been a few days so I thought I would try to get an opinion from the experts on the forum. Any help would be greatly appreciated. __________________