Stock noise louder

Topo · 04-17-2008, 10:54 PM

Just wondering if there is any way to make stock NA a little louder. I can't afford any bolt on mods like short ram or exhaust, because I'm trying to stay in stock class for AutoX here in the states.

I've already removed the small resonator box on the stock intake, but nothing else.

Anything else I can do to remain "stock" but get some idle/throttle grumble?

David_K · 04-20-2008, 03:52 PM

Why do you want to be louder without the performance?

I'd like my car to be somewhat quieter...

Hollow out your catalytic converter, you'll free up some ponys and noise, but no longer pass any aircare.

kbrew8991 · 04-20-2008, 04:04 PM

for SCCA stock class you can change the catback fwiw...

hang onto that resonator box, technically illegal... and so is gutting the cat (plus its a pretty dumb idea anyway)

GINA2MR2 · 04-20-2008, 10:10 PM

hallow cat... great idea done it .. works ok
whats so illegal about the res box?

TomsMR2 · 04-21-2008, 01:59 AM

gutting your cats gives ZERO power gain and makes NO difference in sound. it does smell like ass though.

please dont be a ricer and gut your cat. leave it on there, its good. for an estock car you can basically remove your whole muffler..

conor · 04-21-2008, 02:41 AM

^^^
Removing the muffler or replacing it with something aftermarket is the only way to go.. I used to drive my car around with no muffler, but a stock exhaust manifold and b-pipe (2 cats.. CA-spec). It was tolerable during normal driving.. but utterly pointless insofar as performance. Got stupid loud under WOT conditions.

Like this:

04-17-2008, 10:54 PM	#1 (permalink)
Topo No Skills Join Date: Apr 2008 Posts: 3 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	Stock noise louder Just wondering if there is any way to make stock NA a little louder. I can't afford any bolt on mods like short ram or exhaust, because I'm trying to stay in stock class for AutoX here in the states. I've already removed the small resonator box on the stock intake, but nothing else. Anything else I can do to remain "stock" but get some idle/throttle grumble?

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04-20-2008, 03:52 PM	#2 (permalink)
David_K Spoiler Free FTW Join Date: Oct 2007 Location: Vancouver Island Posts: 141 Thanks: 0 Thanked 1 Time in 1 Post iTrader Rating: (1/100% )	Why do you want to be louder without the performance? I'd like my car to be somewhat quieter... Hollow out your catalytic converter, you'll free up some ponys and noise, but no longer pass any aircare.

04-20-2008, 04:04 PM	#3 (permalink)
kbrew8991 gimme some turns Join Date: Apr 2006 Location: Houston, TX Posts: 1,095 Thanks: 39 Thanked 52 Times in 45 Posts My Google Map iTrader Rating: (1/100% )	for SCCA stock class you can change the catback fwiw... hang onto that resonator box, technically illegal... and so is gutting the cat (plus its a pretty dumb idea anyway)

04-20-2008, 10:10 PM	#4 (permalink)
GINA2MR2 Not A VR6 Join Date: Dec 2007 Location: J-Town Posts: 255 Thanks: 2 Thanked 4 Times in 4 Posts iTrader Rating: (0/0% )	hallow cat... great idea done it .. works ok whats so illegal about the res box?

04-21-2008, 01:59 AM	#5 (permalink)
TomsMR2 Formerly Tom Brokaw Join Date: Feb 2005 Location: Bay Area Posts: 2,040 Thanks: 8 Thanked 152 Times in 129 Posts Blog Entries: 1 iTrader Rating: (0/0% )	gutting your cats gives ZERO power gain and makes NO difference in sound. it does smell like ass though. please dont be a ricer and gut your cat. leave it on there, its good. for an estock car you can basically remove your whole muffler..

04-21-2008, 02:41 AM	#6 (permalink)
conor 玉蹴り Join Date: Feb 2005 Location: Roseville, CA Posts: 835 Thanks: 16 Thanked 22 Times in 21 Posts Blog Entries: 2 My Google Map iTrader Rating: (1/100% )	^^^ Removing the muffler or replacing it with something aftermarket is the only way to go.. I used to drive my car around with no muffler, but a stock exhaust manifold and b-pipe (2 cats.. CA-spec). It was tolerable during normal driving.. but utterly pointless insofar as performance. Got stupid loud under WOT conditions. Like this: