Borla Straight Pipe Cat-Back Exhaust System (12649) - 1997-2004 Chevrolet Corvette C5 Base & Z06 5.7L V8
Turn heads and dominate the streets with the uninhibited acoustic fury of the Borla Straight Pipe Cat-Back Exhaust System. Engineered specifically for the 1997 to 2004 Chevrolet Corvette C5 Base and Z06 platforms, this extreme aftermarket upgrade is tailored precisely for enthusiasts seeking an uncompromising, raw racing exhaust profile. By completely eliminating the rear mufflers and replacing them with premium, high-velocity straight sections, this system maximizes airflow and provides a totally unrestricted pathway for spent exhaust gases. This results in an incredibly deep, intensely loud, and ultra-aggressive V8 exhaust note that is definitely not for the faint of heart. Rooted in decades of competitive history with C5R LeMans winning teams, Borla has transferred track-tested fluid dynamics to the street, optimizing exhaust scavenging to unlock hidden horsepower, maximize torque, and deliver crisp throttle response from the legendary 5.7L LS1 and LS6 engines.
What sets the Borla 12649 apart is its lightweight, muffler-delete architecture combined with heavy-duty construction. Fabricated entirely from premium, aircraft-grade T-304 austenitic stainless steel, this assembly is vastly superior to budget aftermarket alternatives or aluminized finishes to provide permanent protection against deep rust, thermal cracking, and moisture corrosion. Precision computer numerical control (CNC) manufacturing and ultra-smooth mandrel bends ensure a seamless, direct bolt-on fitment using existing factory hangar positions with zero modifications needed. The single-split rear section is finished with a striking pair of massive 4-inch single round, rolled angle-cut lined highly polished T-304 stainless steel tips that deliver a timeless, bold appearance. Backed by an industry-leading written Million-Mile Warranty, this system brings the authentic "Sound of Power" straight to your C5 Corvette.
Features
- Muffler-Delete Straight Pipe Configuration: Completely eliminates restrictive mufflers for raw, uninhibited V8 volume
- Delivers an incredibly fierce, race-inspired exterior exhaust note tailored for maximum auditory presence
- Lightweight design sheds valuable pounds compared to bulky factory muffler assemblies
- Constructed completely from premium-grade T-304 austenitic stainless steel for permanent structural integrity
- Ultra-smooth 2.5-inch CNC mandrel bent tubing layout eliminates bottleneck restrictions to maximize exhaust gas velocity
- Finished with massive rear single-split 4-inch round, rolled angle-cut lined polished T-304 stainless steel tips
- Direct, precision-engineered bolt-on installation with standard hand tools
- Backed by Borla's legendary written Million-Mile Warranty
Fitment By Year, Make & Model
2004 Chevrolet Corvette
- 2004 Chevrolet Corvette Base 5.7L LS1 V8 (Coupe / Convertible, RWD, Automatic/Manual)
- 2004 Chevrolet Corvette Z06 5.7L LS6 V8 (Fixed Roof Coupe, RWD, Manual)
2003 Chevrolet Corvette
- 2003 Chevrolet Corvette Base 5.7L LS1 V8 (Coupe / Convertible, RWD, Automatic/Manual)
- 2003 Chevrolet Corvette Z06 5.7L LS6 V8 (Fixed Roof Coupe, RWD, Manual)
2002 Chevrolet Corvette
- 2002 Chevrolet Corvette Base 5.7L LS1 V8 (Coupe / Convertible, RWD, Automatic/Manual)
- 2002 Chevrolet Corvette Z06 5.7L LS6 V8 (Fixed Roof Coupe, RWD, Manual)
2001 Chevrolet Corvette
- 2001 Chevrolet Corvette Base 5.7L LS1 V8 (Coupe / Convertible, RWD, Automatic/Manual)
- 2001 Chevrolet Corvette Z06 5.7L LS6 V8 (Fixed Roof Coupe, RWD, Manual)
2000 Chevrolet Corvette
- 2000 Chevrolet Corvette Base 5.7L LS1 V8 (Coupe / Convertible / Fixed Roof Coupe, RWD, Automatic/Manual)
1999 Chevrolet Corvette
- 1999 Chevrolet Corvette Base 5.7L LS1 V8 (Coupe / Convertible / Fixed Roof Coupe, RWD, Automatic/Manual)
1998 Chevrolet Corvette
- 1998 Chevrolet Corvette Base 5.7L LS1 V8 (Coupe / Convertible, RWD, Automatic/Manual)
1997 Chevrolet Corvette
- 1997 Chevrolet Corvette Base 5.7L LS1 V8 (Coupe, RWD, Automatic/Manual)
Important Application & Track Notes:
- Fits **all 1997-2004 C5 platform architectures**, including Base Coupe, Convertible, Fixed Roof Coupe (FRC), and Z06 performance models.
- Fits both **5.7L LS1 and high-output LS6 V8 engines** across all manual and automatic configurations.
- **Volume Note:** Because this kit lacks traditional internal packing or baffle structures, it produces high volume levels and interior resonance that may not comply with restrictive local noise ordinances or tracks with strict decibel limits.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

