what is ment by deconing the SLP 2OTL exhaust

 

I'm going to guess that they mean that SLP is discontinuing production
on their 2OTL (Two on the left) catback system.
http://formula.bambeezer.com/2otl.jpg

They used to be pretty popular, I haven't seen much talk about them recently.

 

super quiet I didn't know thay are discontinued production ?

 

I didn't see them on their site when I checked today.
They have their modular setup (Loudmouth, Loudmouth II, etc...)

 

Some production SS's had a "cone" (reducer) on the inlet side of the muffler to reduce noise (for gov't requirements). Note that this was on production cars from SLP only. De-coning involved removing the muffler and extracting the cone. It was commonly called "the cone of silence". I have not heard anyone talk about it for a long time, since it was around the 96 or 97 model year that had them.

 

AH, deconing VS disconning LOL