☰
GET A QUOTE

Q: Engine making a kind of choppy noise

asked by on November 06, 2016

I got my car straight piped a while back and it never really gave me trouble till recently, it doesn't always happen only when I push my car and accelerate to quickly it'll start to make the noise, when I drive normally it doesn't happen. Their is no smoke or steam coming from my car, it's completely operable. Just makes the noise.

My car has 75000 miles.
My car has a manual transmission.

Recommended Services

Exhaust System Inspection $94.99 - $114.99 Get a Quote
Or For Any Other Auto Repairs Get a Quote

Hi there. One of the negative drawbacks of replacing OEM exhaust systems is the noise you’re hearing. This noise is typically caused by small backfires inside the combustion chamber due to the fact that most people don’t tune the engine to match the new exhaust design. You can take your car to a BMW specialist who will most likely adjust the fuel and ignition timing to fine-tune your vehicle or you can contact a professional mechanic to inspect the vehicle’s exhaust system for any other mechanical problems that may cause damage to your vehicle.

BMW
Noises
2011
exhaust system
L6-3.0L
328i
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

What does the Door Open indicator mean on the dash?
Your car is equipped with sensors on each door, as well as the trunk. Their point is to ensure that you know when a door isn’t shut properly, so you can close it before you begin driving. Driving with a...
Read more
What does it mean if the warning message “tire pressure monitor fault” is displayed?
Your car comes standard with a tire pressure monitoring system (TPMS). This system is responsible for monitoring the pressure in all four tires (but not the spare). If it detects low pressure, the Low Tire Pressure Light on the dash...
Read more
Mileage is getting progressively worse
Hi there. This can be caused by a number of things. If it occurred right after the work was done then you may want to have it double checked. They may have used poor quality wires or the wrong spark...
Read more
Car rough idles and worse when engine is warm - 2008 BMW 528i
Hey there. You should first check for any problem codes. Next, check for vacuum leaks (https://www.yourmechanic.com/article/is-it-safe-to-drive-with-a-vacuum-leak). Third, check out the idle air control valve (https://www.yourmechanic.com/services/idle-control-valve-replacement) - clean it if possible. A professional mechanic, like one from YourMechanic, can help with...
Read more
Why is my car not starting properly
Hello, thank you for writing in. Vehicles can have a hard time starting in cold weather for several reasons. Due to the reaction from the engine when you introduced starter fluid, it may be a fuel issue causing your symptoms....
Read more
On a 2008 Mercedes Benz c300 where is the fuel filter located?
Hello. The fuel filter on your vehicle seems to be inside of the fuel tank. It should be serviceable by removing the rear seat cushion. Here Is a great write up with the instructions on how to remove it and...
Read more
How many spark plugs does a Chevy Traverse 2012 need?
Your engine has 6 spark plugs. If you are having problems with the traction lock then have the system scanned to see if there is codes stored.
Read more
How often does a 2011 BMW 328i really need to get oil changed? My light has come back on at under 5,000 miles. 2011 BMW 328i
Hi - the # of miles between oil and filter changes (https://www.yourmechanic.com/article/why-do-cars-have-different-oil-change-intervals) is perhaps the 2nd longest running discussion since someone said "My car is faster than your car!". Driving conditions: clean air/dusty, freeway/city stop-and-go, long drives vs 3 minute...
Read more
my car jerks and seems like it wants to shut down when im at a red light and i roll the windows up lights seem to dim out
This sounds like it could be two separate problems. You may have been on the right track with the battery, but if the voltage drops while the engine is running, that sounds more like a charging system problem. It might...
Read more

Related articles

What Are California's Emissions Standards?
California California is one of the most heavily populated states in the country. There are more vehicles on the road there than almost anywhere else in the country (statewide). Because of this, the state has had to adopt very strict...
Read more
Why Do Diesel Vehicles Emit Black Smoke?
There’s There’s a common misconception among drivers of gasoline engine cars that diesel engines are “dirty,” and that black smoke is emitted from all of them. That’s actually not the case. Take a look at any well-maintained diesel car, and...
Read more
Symptoms of Bad or Failing Differential / Gear Oil
If your car has exceeded its gear oil service interval, or if you hear the differential whining, you may need to replace the differential/gear oil.
Read more

Browse other content

Maintenance
Estimates
Cities
Cars