hey, I was wondering if anybody knew which was the better exhaust system between the SLP Loud Mouth exhaust, or the best known, Borla Cat Back exhaust. The Car they would be going on would be a 4th gen. Ls1 Camaro SS (99-02). I have not gotten it yet, but those are the years I'm looking for. And for when I do, I would like to know which is the better exhaust system. Better meaning the horse power addition, and especially the sound difference. any help would be appreciated. thank you. layta

 

Loud mouth --- I have the Loudmouth, its great, love the sound, you can put it hard into someones ear when you want to. The price is great for a full stainless system. It is freer flowing than any aftermarket catback system, thus more HP, just look at my mods and times and power. Email me if you want a clip of my LM in action.

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99 SS, Dark Metallic Blue, M6
SLP lid, KN, TBB, SLP Y-pipe, SLP loudmouth
ported MAFs, Nitto 315 DRs
Currently: 1/4 13.06@113.8 (gtech runs high in mph by about 4mph), 0-60 4.77 (w/passenger) Gtech'd
12.99@110.2, 2.06 60ft - Tazzo.
Also, 331 rwhp as measured on the Gtech