SKU: 991717-SL
Solo Performance WK2-Thunder-Res 3″ Cat-Back Exhaust Kit 2012+ Jeep Grand Cherokee SRT-8
The Solo Performance 991717-SL WK2-Thunder-Res Cat-Back Exhaust Kit is the best free-flow performance exhaust upgrade for 2012+ Jeep Grand Cherokee SRT-8 owners seeking deep, mean 60’s muscle car sound outside with a drone-free, non-invasive exhaust note inside. This full 3” mandrel-bent stainless steel system features a front H-Pipe, four free-flow Solo resonators (including 55° angled rear), rear tunable J-Pipes for drone cancellation, and pivotal telescoping tailpipes to reuse stock tips, delivering raw American muscle tone with refined cabin comfort through advanced R&D and J-Pipe technology.
Key Features
- Drone-Free Interior: Rear tunable J-Pipes cancel annoying cabin drone frequencies while preserving aggressive exterior sound
- 3” Mandrel-Bent Stainless: T-304 stainless steel tubing for maximum flow, durability, and corrosion resistance
- Front H-Pipe: Equalizes cylinder pressure and smooths exhaust note for balanced tone
- Free-Flow Resonators: MR300S front resonators + 55° angled rear resonators for deep, rich sound without restriction
- Pivotal Telescoping Tailpipes: Easy centering of stock exhaust tips (reused) with no modifications
- Heavy-Duty Hangers & Flanges: Reinforced hangers and 3/8” thick front flanges for secure, vibration-free installation
Specifications
| Specification | Detail |
|---|---|
| Part Number | 991717-SL |
| System Type | Cat-Back (Free-Flow) |
| Pipe Diameter | 3 inches |
| Material | T-304 Stainless Steel |
| Tips | Reuse Stock Tips (Included Collar Clamp) |
| Exit | Dual Rear Center |
| Country of Origin | United States |
| Warranty | Limited Lifetime |
Product Notes
- “Sound on Demand” system – aggressive during acceleration/revving, quiet at cruise
- J-Pipes factory preset – minor adjustment (1/2″ increments) possible for perfect drone elimination
- Stock exhaust tips and collar clamp reused for factory appearance
Installation Notes
- Estimated time: 2-4 hours, moderate difficulty, direct bolt-on with included hardware
- No welding required – uses factory hangers; adjust J-Pipes if needed for optimal sound
This Part Fits
| Year | Make | Model | Notes |
|---|---|---|---|
| 2012-2021 | Jeep | Grand Cherokee | SRT-8 (WK2 Chassis) with Rear Center Duals |
Why Choose Solo Performance WK2-Thunder-Res?
- Custom-engineered for Jeep SRT-8 WK2 – achieves 60’s muscle car sound outside with refined cabin comfort
- J-Pipe technology eliminates drone frequencies – months of R&D for perfect balance
- Limited lifetime warranty ensures long-term durability and satisfaction
Frequently Asked Questions
- Q: How loud is it inside?
A: Drone-free and non-intrusive inside – deep, rich, raw sound outside like a 60’s muscle car. - Q: Does it increase power?
A: Yes, free-flow design reduces backpressure for small HP/torque gains. - Q: Is it emissions compliant?
A: Yes, cat-back retains factory cats – no emissions impact. - Q: Will it fit non-SRT models?
A: Specific to SRT-8 WK2 with rear center duals – confirm fitment for other Grand Cherokee trims.
Shipping & Handling
- Method: UPS/FedEx Ground
- Availability: In stock, ships same or next business day
- Packaging: Official Solo Performance retail box
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