For 05-08 C6
For LS2 and LS3 engines
Up to 12 RWHP gains
The SLP Loudmouth II™ packs the same power punch as the original with a little less volume to deliver muscle-car power without waking the entire neighborhood.
Deep Loudmouth II™ Growl. The deep muscle car sound and big HP gains of the Loudmouth™ are now available in a more refined version for your C6 Corvette. If you love that big bad sound, but want something a little quieter than the original Loudmouth, you'll love the tone of the Loudmouth II's polished stainless bullet-style resonators.
Big HP and TQ Gains. With a free-flowing, straight-through design, this catback has been dyno-proven to add up to 12HP. Engineered and designed to exceed OEM standards, this exhaust offers a superior fit right out of the box for long-term durability and an easy bolt-on installation.
Crafted from 304 stainless steel
Polished 3.5" dual split round tips
Polished 2.5" tubing
Download the installation instructions (right click, "Save As")
*Note: This SLP Loudmouth II Catback will only fit 05-08 C6 Corvettes (does not fit 09+ or Z06)