exhaust popping

B

brando

New Member

Sep 22, 2003

28

0

0

Alabama

Oct 9, 2004

#1

• Oct 9, 2004

• #1

I have a Bullitt with a 2.5" catback and Spintech Sportsmans welded in. Stock H-pipe without the back two cats. All else is stock. WHy do I get this annoying popping sound when I let off the gas and idle down? It scares little kids when I have my foot in it, then I let off and it's like I'm in a different car?

WTF?...over

 

B

brando

New Member

Sep 22, 2003

28

0

0

Alabama

Oct 10, 2004

#2

• Oct 10, 2004

• #2

Don't everybody all chime in at once

 

NightLife

Member

Sep 11, 2003

284

0

16

Tampa, FL

Oct 10, 2004

#3

• Oct 10, 2004

• #3

its normal w/ an aftermarket exhaust... but you dont have one.

you do have cats right? usually thats what causes it... i like it somewhat so it doesnt bother me.

 

B

brando

New Member

Sep 22, 2003

28

0

0

Alabama

Oct 10, 2004

#4

• Oct 10, 2004

• #4

NightLife said:

its normal w/ an aftermarket exhaust... but you dont have one.

you do have cats right? usually thats what causes it... i like it somewhat so it doesnt bother me.

Click to expand...

Thanks nightlife...Yep I have a Magnaflow catback but put Spintechs in thinking the slight baffling in the Spintechs would diminish the popping. It didn't. I don't regret the Spintechs though.

MY stock mid-pipe has been modified slightly...the back two cats are hollowed out. So you think the offroad pipes will stop the popping? X or H-pipe? I kind of like the x-pipe angry sound.

 

Indiana

New Member

May 6, 2004

286

0

0

Oct 10, 2004

#5

• Oct 10, 2004

• #5

The cause of the sound is unburnt fuel lighting off in the exhaust pipe. As was said before, it is normal with after-market exhaust. Unless it is REALLY loud.

 

B

brando

New Member

Sep 22, 2003

28

0

0

Alabama

Oct 10, 2004

#6

• Oct 10, 2004

• #6

Indiana said:

The cause of the sound is unburnt fuel lighting off in the exhaust pipe. As was said before, it is normal with after-market exhaust. Unless it is REALLY loud.

Click to expand...

Thanks Indy...I just wish I though. It is a low rumbly pop though.

 

mity2

I like Pro3 and all I got was this crappy CT.

Jul 24, 2003

2,872

3

48

StateCollege PA

Oct 10, 2004

#7

• Oct 10, 2004

• #7

kind a like littlw pop myself

 

B

brando

New Member

Sep 22, 2003

28

0

0

Alabama

Oct 10, 2004

#8

• Oct 10, 2004

• #8

mity2 said:

kind a like littlw pop myself

Click to expand...

Well maybe my exhaust doesn't sound bad to other folks then either.

 

01MachGT

New Member

Mar 20, 2004

104

0

0

Marshalltown, IA

Oct 10, 2004

#9

• Oct 10, 2004

• #9

an off road pipe will only make the popping more prevalent. I've got an OR/X (mac) with magnaflow cat back and love the sound of it.

 

Qrazy02GT

Founding Member

Jun 10, 2002

319

0

0

Groton, CT

Oct 12, 2004

#10

• Oct 12, 2004

• #10

Check for exhaust leaks, a leak upstream can give a little extra popping out of the back....

 

DELOS02GT

Founding Member

Jun 4, 2002

461

0

0

Naperville, IL

Oct 12, 2004

#11

• Oct 12, 2004

• #11

Mine does that too. It's normal don't worry about it. I just let the car idle to a stop and it's quiet.

 

01MachGT

New Member

Mar 20, 2004

104

0

0

Marshalltown, IA

Oct 12, 2004

#12

• Oct 12, 2004

• #12

yeah, engine braking makes it pop lots. (engine braking is fun lol)

 

Krindor

New Member

Aug 22, 2004

10

0

0

NJ

Oct 12, 2004

#13

• Oct 12, 2004

• #13

Heh, I have SLP Loudmouth catbacks on a stock mid-pipe. Popping like crazy! (I love it)

 

stang976

New Member

Apr 13, 2004

853

0

0

Westchester, NY

Oct 12, 2004

#14

• Oct 12, 2004

• #14

yea unburned fuel can cause that. i would imagine if your running rich then that would cause popping sounds.....but i did read a post on MD that lean conditions cause backfiring.. anywhoo look into that as well if it is a serious popping or backfiring noise