EXHAUST SYSTEM FEATURES

• Straight-through, 2.5" nonrestrictive design specifically tuned for the Cadillac STS, increases exhaust flow.
• Flow bench-tested 42.3 gain in exhaust flow vs. stock muffler.
• All 304 stainless steel construction, crafted with pride and precision in the USA.
• Patented* CORSA Reflective Sound Cancellation™ (RSC™) technology for superior sound: Bold when you want it to be. Quiet when it needs to be.
• Dual rear exit with single handcrafted Pro-Series 4.0" tips for enhanced vehicle appearance.
• No welding required; Bolt-on installation.
• Includes hardware and illustrated installation guide.
• 50-state emissions legal.
• cadillas STS exhaust system complies with 95-decibel limit when tested in accordance with SAE test procedure, J1169 (May 1998).

  Incredible Full-Throttle Sound, Whisper-Quiet Cruise

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2005-07 Dual Rear Exit with Single Pro-Series 4.0" Tips 
#14157
 

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* U.S Patent Number 5,952,625; 6,199,658; other patents pending