) 
SLP dual dual internals
I like them too much to cut one up 
The SLP Dual/Dual flows well and is quiet so both of mine are installed one on the TA & RS.
My heads & cam TA has "passed" for stock before and that surprised several folks
Factory installed SLP D/D have a "ring of silence" in one of the exhaust tips - i forget which side, i thinks usually the cleaner one. The ring can be removed for louder exhaust note. The ones bought direct from SLP didn't have the ring.
I believe the SLP 2OTL uses the same muffler or one very similar.
The SLP Dual/Dual flows well and is quiet so both of mine are installed one on the TA & RS.
My heads & cam TA has "passed" for stock before and that surprised several folks
Factory installed SLP D/D have a "ring of silence" in one of the exhaust tips - i forget which side, i thinks usually the cleaner one. The ring can be removed for louder exhaust note. The ones bought direct from SLP didn't have the ring.
I believe the SLP 2OTL uses the same muffler or one very similar.
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On The Tree
Joined: Feb 2013
Posts: 138
Likes: 24
From: Shawnee, KS
It's too quiet for me. It's barely louder than my factory 99 z28 was. Idle was noticeably louder but that's it. I actually about to replace it with an eBay phab straight pipe setup and magnaflow 14419 inline before the axle. I do have SE headers and or.