How can I silence my exhaust at start-up?

**ntymd8r** · 12-31-2013, 11:59 AM

Just as the title says....

I have the SLP Loudmouth and it obviously wakes up the neighborhood in the morning with a loud ROAR! Is there anyway to slip some type of silencer on the exhaust tips at start up to quiet her down?

Thanks

**bhunter0830** · 12-31-2013, 06:48 PM

It's called "Loudmouth" for a reason. I have the same problem, my neighbors know when I come and go unfortunately. My suggestions is to do what I did... Replace the LM with a muffler of choice and then get a cut out when you want to make some noise. Just my opinion.

**ntymd8r** · 12-31-2013, 07:22 PM

Originally Posted by bhunter0830

It's called "Loudmouth" for a reason. I have the same problem, my neighbors know when I come and go unfortunately. My suggestions is to do what I did... Replace the LM with a muffler of choice and then get a cut out when you want to make some noise. Just my opinion.

That's what I was dreading....having to do that!

**bhunter0830** · 12-31-2013, 07:26 PM

Not exactly what you want to use on a sneak attack!

**ntymd8r** · 12-31-2013, 07:44 PM

Hehehe

***SMWS6TA*** · 01-01-2014, 09:31 AM

Cali allows you to have LM's? Cutout's in Cali?

But yeah no chance of quieting it. They are by design loud. I'm surprised you pass emission in Cali with a LM.

**ntymd8r** · 01-01-2014, 09:54 AM

Originally Posted by SMWS6TA

Cali allows you to have LM's? Cutout's in Cali?

But yeah no chance of quieting it. They are by design loud. I'm surprised you pass emission in Cali with a LM.

I guess so....when I bought it, it stated 50 state legal. Been to 3 smog checks so far, 2 being regular and 1 being the more in depth one....passed all. The Predator tune as we'll....

**kingls1** · 01-01-2014, 01:09 PM

stuff a banana in each tail pipe that should keep it quite for a bit

**theorangeguy** · 01-01-2014, 02:01 PM

Originally Posted by kingls1

stuff a banana in each tail pipe that should keep it quite for a bit

potato's work way better...they'll shoot out once enough pressure builds

Im not saying I have ever done that or anything...

***SMWS6TA*** · 01-01-2014, 02:49 PM

Originally Posted by kingls1

stuff a banana in each tail pipe that should keep it quite for a bit

Originally Posted by theorangeguy

potato's work way better...they'll shoot out once enough pressure builds

Im not saying I have ever done that or anything...

"Friendly banter" is ok in the tech sections as long as it stays "Friendly" as please keep it civil guys.

**pajeff02** · 01-02-2014, 02:47 AM

No real fix that I am aware of, other than swapping out the system. An electric cutout is a great way to control the sound once you tone things down.

**Firebirdjones** · 01-02-2014, 03:41 AM

Get yourself a coan baffle. They slip into the exhaust stream anywhere you have a pipe joint. Can be installed/removed at any time. I've used them in the past to tone down systems.

Actually SLP used them starting in about 2001 when their optional dual/dual systems were deemed too loud to pass the drive by noise standards. Rather than redesign a new muffler, a simple coan was inserted in the I-pipe right before it entered the muffler.

**SteveC** · 01-03-2014, 04:44 AM

Originally Posted by SMWS6TA

Cali allows you to have LM's? Cutout's in Cali?

The cut out is illegal, and you will find that out when you have to go to a "State test run facility", for a smog check, any "cat back" exhaust system is legal in California, however be aware that the police do not have to meter the vehicle for db anymore, the law was changed to read "at the officers discretion", which means if he thinks it is to loud, then the burden is on you to prove that it isn't. The law is tolerant up to 75 db for our year vehicle.

Good luck with that with a loudmouth resonator.

**98TransAmWs-6** · 01-03-2014, 05:00 AM

Most people want their car louder not quieter. As others have stated the only way to quiet the loudmouth is to swap to a different muffler or do as fbj said. I personally like how loud my lm1 is with LTs.

**Firebirdjones** · 01-03-2014, 05:49 AM

Originally Posted by 98TransAmWs-6

Most people want their car louder not quieter. As others have stated the only way to quiet the loudmouth is to swap to a different muffler or do as fbj said. I personally like how loud my lm1 is with LTs.

Hey speak for yourself, as us oldfolk turn into grey hairs we want quieter

I run a mufflex 4" system on my wifes car with a magnaflow, yeah it's too loud. Been wanting to take that off for the longest time.

**98TransAmWs-6** · 01-03-2014, 06:03 AM

Originally Posted by Firebirdjones

Originally Posted by 98TransAmWs-6

Most people want their car louder not quieter. As others have stated the only way to quiet the loudmouth is to swap to a different muffler or do as fbj said. I personally like how loud my lm1 is with LTs.

Hey speak for yourself, as us oldfolk turn into grey hairs we want quieter

I run a mufflex 4" system on my wifes car with a magnaflow, yeah it's too loud. Been wanting to take that off for the longest time.

Which is why I said most lol and not all.

**Firebirdjones** · 01-03-2014, 01:48 PM

Originally Posted by 98TransAmWs-6

Which is why I said most lol and not all.

I know, I'm just poking fun at ya

**cammed goat** · 01-10-2014, 06:22 PM

My neighbor calls my car his "alarm clock" as he knows when to wake up...when I start my car.

I have been stopped occasionally to be told my car is a little on the loud side...but sounds nice. I'm thinking about ordering a skip-shift eliminator so I can short-shift again to keep Johnny Law happy.

**98TransAmWs-6** · 01-11-2014, 10:32 AM

Originally Posted by cammed goat

My neighbor calls my car his "alarm clock" as he knows when to wake up...when I start my car.

I have been stopped occasionally to be told my car is a little on the loud side...but sounds nice. I'm thinking about ordering a skip-shift eliminator so I can short-shift again to keep Johnny Law happy.

My neighbors hate how loud my car is. Now after my rebuild is complete they will hate it even more lol. 230/238 camshaft LTs and LM1 through a 396.

**BigTeddy254** · 01-11-2014, 03:08 PM

man screw that i put 3/34 stainless straights on every ls i have had. best sound ever and if ppl hate it then thats too bad cuz it dont get no better soundin than that my friends, cops check em but i welded a glasspack over my stainless to look like a muffler hehehe and it has a plus if ppl arent paying attention or on their phone drivin like crap give em a ear full right beside em and watch em freak the f out and give em a tsk tsk tsk lmfao LS trolling is the best