Removing Muffler?

Is your car throwing codes or are you having a hard time passing your state or county emission test? Ask how to fix it here.
Post Reply
2GN Member
Posts: 38
Joined: Wed Dec 11, 2013 1:27 pm
Location: 530 California

Removing Muffler?

Post by BR4ND0NW4YN3 » Wed Dec 11, 2013 1:40 pm

Sorry if this has already been posted, I'm brand new here (1st post) and couldn't find any answers, I have a 04 SXT and I love the deeper sound when I unbolted the muffler yesterday, I live in CA and was wondering if anyone knows the following:

If I bolt a pipe to make it exit the rear bumper is it illegal?
I plan on leaving the CAT in and making the pipe un-bolt for smog purposes. can I legally run the CAT and straight pipe as long as the tip exits past the body?

2GN Member
Posts: 2476
Joined: Wed Sep 27, 2006 9:22 am
Location: Torrington, CT

Post by ragek23 » Wed Dec 11, 2013 5:20 pm

I am pretty sure any mods in cali have to be cali or carb compliant even for cold air intakes and exhausts etc. Meaning probably the only legal way is to get a legit axel back such as what offers.

2002 Neon SXT Sold
2006 EVO MR Weekend Warrior
2003 SRT 4 DD


2GN Member
Posts: 3644
Joined: Sat Jul 07, 2007 11:42 pm
Location: carlisle, pa.

Post by r/tguy02 » Wed Dec 11, 2013 9:02 pm

Yeah if it came with a muffler it has to have one, in Cali they're anal
[02 R/T sold][00 Highline sold][04 r/t scrapped][95 NYG Sport coupe][01 r/t DD]

occasional demons
Junior Admin
Posts: 19695
Joined: Thu May 03, 2007 12:14 pm
Location: Ashland Ohio

Post by occasional demons » Thu Dec 12, 2013 7:24 am

I think it has to meet certain sound level requirements too. The axle back (Rear section) isn't bad to remove/replace, I would just swap the two when it's time for testing. You may want to put a resonator in the pipe to keep the sound police at bay. The less attention, the better.

Just coat the pipe where it clamps with antiseize to make removal/install a bit easier.
dblsg wrote:ya'll a bunch of post whores
Seriously people, this is 2019 not 1920.
Too much time spent here is a sign of a bad case of Ownaneonvirus.

2000 Neon MTX swap with '02 R/T PCM
1999 neon coupe 2.4 swap
Help support 2GN!

2GN Member
Posts: 1455
Joined: Thu Sep 09, 2010 11:50 am
Location: Pensacola, FL

Post by C1DoG » Thu Dec 12, 2013 8:11 am

Drove my neon until it was killed in a flood.

User avatar
2009 Silver Contributor
Posts: 9493
Joined: Fri May 30, 2008 5:35 pm
Location: Pittsburgh, PA

Post by sidepipe87 » Thu Dec 12, 2013 12:36 pm

If you want that loud, raspy, super obnoxious sound just bolt a stock SRT-4 rear section on... people sell them cheap when they put an upgraded exhaust on and then at emissions time you can swap back to your stock muffler. It's CA after all, no rust to worry about, right?...
PM me for your 03+ PCM SKIM/VIN flashing needs. Neon PCMs Plus

2GN Member
Posts: 38
Joined: Wed Dec 11, 2013 1:27 pm
Location: 530 California

Post by BR4ND0NW4YN3 » Fri Dec 13, 2013 1:08 pm

Thanks for the replies, I've come to find out that r/tguy02 is tight and the car must have a pipe.
...Yeah that's a KISS sticker in my back window.


Post Reply

Return to “Emissions”