When I'm engine braking in second or third gear and about 2200-3000rpm my exhaust wants to backfire and pop until I push the clutch in. It doesn't bother me too much but I'm wondering why it does it. I have Berk HFC's, Stillen Y-pipe and Agency Power single. Anybody else's single exhaust do this?

 

Every exhaust iv ever owned backfires

 

I was hoping you would chime in being the exhaust *****, haha. Good, I was thinking maybe I had an exhaust leak or something because the cats were a pain to install and wasn't for sure if I got everything completely tight.

 

It would be kinda cool if mine did. My brothers exhaust backfires like hell on his maxima.

 

yeah, true most exhaust backfires/pops. doesn't this mean your car is running lean?

 

mine backfires, i can rev it in nuetral and it'll backfire or when im engine braking. but only around the 3000 rpm range..

 

yes, during decel it's typical since the IDC will be at its lowest.

 

The exhaust causes the car to backfire? I didn't know that.

 

I had it tuned by Injected last year so it shouldn't be.

 

yea i dont think the lean comment was accurate. I was just also tuned as in last thursday so i know im not lean

 

I was thinking the same thing??

I always thought it had something to do with either other wise less restrictive piping or running rich... But Wat do I kno?

Something new everyday!

 

I thought the backfires were from the unburned gas mixture combusting in the exhaust system..? And a more free flowing exhaust would probably allow more backfires, I'd think.

 

that sounds pretty believable

 

Both can cause it. A rich backfire is usually very loud...like one or two loud bangs...this is not normal and definately tune related.

a lean decel is actually a steady misfire and sounds like burbling/popping which is very common with the VQ.

 

Call me crazy, but I love that my exhaust does the burbling/popping when I engine brake -

- it makes my sticker peck up.

 

This is what I thought.

This is exactly what mine does. So no big deal

 

I was jus kidding but on a serious note I personally don't mind there back fires but one thing that bothers me is I kno its unburned fuel that's exploding in my exhaust which transpires into fuel wasted..
Can't have one with out the other I guess

 

Mine does not.

I have headers, ART pipes, XYZ with resonator and Agency Ti.