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Solo Performance

WK2-Thunder-Res 3-Inch Dual Cat-Back Exhaust Kit

$1,698.00 $1,697.96 Save $0.04

SKU: 991717-SL

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Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Solo Performance WK2-Thunder-Res is a 3-inch dual cat-back exhaust kit designed for the Jeep Grand Cherokee SRT-8. This stainless steel system is a full 3-inch mandrel-bent exhaust kit, featuring a front H-pipe, four free-flow Solo resonators (two angled), and tunable J-pipes to eliminate cabin drone. It is a completely bolt-on installation requiring no welding and utilizes stock exhaust tips.
Show original supplier description
The Solo Performance WK2-Thunder-Res cat-back exhaust kit is engineered for the 2012-present Jeep Grand Cherokee SRT-8, offering a deep, aggressive 60s muscle car sound on the exterior without the typical drone associated with larger exhaust systems. Constructed from 3-inch mandrel-bent stainless steel, this comprehensive kit includes a front H-pipe for improved exhaust flow and cylinder pressure equalization, four free-flow Solo resonators (including two 55-degree angled resonators for enhanced sound dynamics), and distinctive rear tunable J-pipes. These J-pipes utilize a unique technology where sound waves entering them bottom out on an end cap and bounce back, colliding with the specific drone frequency of the Jeep SRT-8 and canceling it out, resulting in a comfortable, non-invasive interior sound profile at cruise speeds. All necessary hardware is included, and the system is completely bolt-on, requiring only regular tools and no welding. Heavy-duty reinforced hangers and 3/8” thick flanges in the front further ensure durability and a secure fit. This exhaust kit is specifically designed for the 4th generation Jeep Grand Cherokee SRT-8 (2012-Present).

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandSolo Performance
Part Number991717-SL
CategoryExhaust
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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