didn't the "factory" 2otL have a silencer (i.e. the cone of silence) in them, making them noticably quieter?

I love the look, I had a dynomax kit on my '86 Z28 that was a 2otL design

 

Yeah they sure did.

 

yes but you can take the cone of silence out

 

Ok, so where is this "cone of silence"? And exactly where is it? I'd like to get rid of it, if all it does is quiet the car down. Is that its only purpose?

 

For '97 models only.

 

is this not the true SLP TOTL? every Firehawk owner i've encountered and those that post on Firehawk.org , in some of the signatures have TOTL that describes the SLP exhaust for the Firehawk's. i've never heard TOTL as you guys are referring to.

 

^^^^2OTL: 2 on the left
TOTL: two on the left

 

I have this exhaust w/ y pipe and Pacesetter LTs no cats or rear o2s

It doesnt seem that loud though so if there is a silencer on it I want to know where it is and how to remove it. My car is the 97 SS

I would do a sound clip for ya but not to computer savy with video

 

look at the bottom of this page it somewhat explains:
http://ls1sounds.com/slp_2otl.htm

 

The cone of silence is located right at the opening at the muffler just at the end of the over the axel pipe, I had mine removed about eight years ago at a local muffler shop for $30.00. There was an audiable difference.

 

My 2OTL muffler came off of a 97 SS, and when I bought it, I bought it with the over-the-axle pipe still attached, so the cone of silence was still in there.

Technically, the cone isn't in the muffler, it's in the over-the-axle pipe. They basically have an insert that necks down to about a 1 3/4" diameter. I removed mine after I got curious to know if it was still in there.

I'll post a sound clip when I get mine put on. I'm still running the stock muffler right now. 383 w/ 230-236/112 cam with SLP single cat headers, Random Tech cat. Honestly, it sounds good even through the stock muffler, but you can tell the engine is muffled and wants to breathe.

 

I bought my 97 SS with the slp 2otl previously replaced with a flowmaster muffler (I don't know why). Fortunately there was a guy in the regional section selling a 2otl! I picked it up yesterday for $50. I am going to install it after I rebuild my engine.

 

Does anybody know if you can still buy this catback from any of our sponsors? >

 

I don't think you can, as SLP discontinued it several years ago.

 

so is the "cone of silence" on '95 models? (firehawk)

 

hey, have you guys ever heard of ls1sounds.com??? it has clips of a ton of exhaust setups, here is a link to the slp 2otl... http://www.ls1sounds.com/slp_2otl.htm