SLP Performance 31042A - SLP Loudmouth Exhaust Camaro V8 Cat-back System w/3.5 Slash Tips; 1998-2002.
SLP’s F-Body cat-backs have always been the best-performing exhaust systems in the business. Now they’re the most versatile, too! Using our industry-exclusive modular design architecture, we’ve developed a line of systems that can be quickly reconfigured to fit changing performance, noise-level, and sound-quality requirements. Simply loosen a few band clamps, swap muffler types, retighten, and you’re done. No other exhaust offers this level of performance and adaptability!
Along with the included race muffler, the F-Body Loud Mouth system is compatible with our original Loud Mouth II buttlet-type race muffler (#31067). Get both for complete control over your car’s sound and performance characteristics.
NOTES: Includes Loud Mouth resonator. Loud Mouth II race muffles sold separately.
FEATURES:
Model | Type | Sound Characteristics* | Noise Level* |
![]() |
Bullet-Type
Open Resonator (or muffler delete) |
Extremely aggressive; powerful high- and
mid-range tones with moderate resonance |
![]() |
![]() |
Muffling, Bullet-
Type Resonator |
Similar to original Loud Mouth, but with
a throatier tone and reduced resonance |
![]() |
![]() |
Straight-Through
"Traditional" Muffler |
Deep, rich, and mellow; minimal resonance |
![]() |
* Volume and sound quality will vary based on engine and exhaust-system specifications. Loudmouth also refers to some systems without any resonators such as the 2010 Camaro Loud Mouth and the 2005 Mustang Loud Mouth Axle backs where the mufflers are removed altogether. Images below are representations in order to better understand the differences.
California Residents: Prop 65 WARNING: This product MAY contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov
California Residents: TIRE WARNING: LMPerformance will not ship Tires to California.
Legal: Some or all of these parts may not comply with Federal, State, Province, and/or Local laws, ordinances, and regulations. Buyer takes all responsibility to ensure that any modifications or upgrades that have done conform to all applicable laws and regulations for road use, especially pertaining to safety and emissions. LMPerformance is not responsible for buyer not complying with Federal, State, Province, and/or Local laws, ordinances, and regulations. This policy shall be in force for all past, current, and future purchases from LMPerformance, Inc. LMPerformance will not ship ANY non-CARB compliant products to California where California requires products to be CARB certified such as Catalytic Converters and Induction Kits.
FREE SHIPPING: Please note FREE Shipping refers to shipping within the contiguous continental US only. All other locations extra.
IMAGES: Images may be a representation and may not reflect the actual product. Examples would be SPEC stage 3 clutch kits which all use the same photo.
Search Terms: 31042A SLP Performance SLP Loudmouth Exhaust Camaro V8 Cat-back System w/3.5 Slash Tips Catback Chevrolet Exhaust Systems Loudmouth I SLP Loudmouth Exhaust Camaro V8 Cat-back System w 35 Slash Tips 1998 1999 2000 2001 2002
SLP's warranty obligations for SLP® Parts and Accessories (individually and collectively “Part(s)”) is limited to defects in
materials and workmanship, as solely determined after SLP’s careful inspection, for that period identified in the chart
below that begins on the date of retail purchase by the original end-user purchaser ("Warranty Period"). 90 Days from the date of retail purchase by the original end-user purchaser. *Excludes SLP® Overstock Parts, NON-SLP® Parts and Accessories, SLP® Wheels; SLP Superchargers®
; SLP® Competition Parts, and SLP® Crate Engines, which the warranty coverage for the foregoing, if any, is separate from that explained here.
These are parts that other customers have purchased while purchasing the product on this page.
History and information about SLP Performance and their products.
Since 2001, LMPerformance has worked closely with SLP Performance to offer customers a wide range of performance enhancements to the American muscle car, the best known of which is its SLP Loudmouth muffler and SLP Camaro systems. With our SLP Performance parts line we have helped customers transform late-model rides into modern muscle cars like the Camaro SS and Pontiac Firehawk.
True to its name, Street Legal Performance (SLP) has a vision "to not just provide performance, but to do so with the best engineering practices and quality possible, far exceeding the industry standards." Impressively, SLP was the first company in the performance aftermarket to develop and manufacture a 50-state emission-legal performance package specifically for V8 Camaros and Firebirds. LMPerformance carries SLP's best-in-class performance upgrades in the following product categories: TVS Supercharger Packages, Blackwing Cold Air Intakes, SLP Exhaust Tips, SLP Loudmouth Mufflers, Powerflo Headers, SLP Accessories, SLP Suspension, SLP Brake Kits and SLP Wheels. The range of applications offered by the SLP line is equally as wide. Below is just a partial list: Chevy Camaro, Corvette, GM/GMC Trucks and SUVs, Pontiac Firebird, GTP, G8, GXP and GTO, Ford Mustang and F-150, Dodge Challenger, Charger, Magnum and 300. Awesome, Date: 9/27/2010
By: csgantt
Ownership: 1 day - 1 week
The sound is absolutely the meanest I've heard in a long time. Exceeded my expectations just as indicated by the previous review. The poor little Mustangs pulling up next to me look frightened :)
Current Mods:
SLP long-tube headers and SLP LM-1 exhaust on a 2000 SS camaro.
Welded it on instead of the clamps because i didnt want them to be visible. The sound is like no other and completely exceded my expectations. Highly recommend it to any one who wants to really let their f-body breath.
Current Mods:
Exhaust
Reviews for SLP Performance's Other products are show below.
Current Mods:
K&N
Flowmaster
Blackbear custom tune
Current Mods:
SLP CAI, 160 deg. thermos, competition harmonic balancer,4L60E shift kit, 3400 rpm stall converter, 373 rear end gears, granatelli 85mm maf ,Diablo predator reprogram, dual exhaust.224/224/581/581 comp cam with 114lsa and dual springs.
Current Mods:
K&N intake, magnaflow muffler swap, SLP rear section (resonator delete) and BlackBear Tune
Below are other popular parts other customers have purchased for their Chevrolet Camaro.