Borla Touring Cat-Back Exhaust System with Polished Tip (140158) - 2005-2010 Jeep Grand Cherokee 5.7L Hemi V8
Wake up the adventure-ready spirit of your rig with the high-impact Borla Touring Cat-Back Exhaust System. Custom-engineered for 2005 to 2010 Jeep Grand Cherokee (WK) models, this premium full-length exhaust upgrade introduces Borla's most refined acoustic profile: the Touring sound level. Formulated explicitly for off-road adventurers and daily drivers who crave a clean, smooth, and mature exhaust note rather than an overbearing or raspy bark, the Touring muffler configuration is calibrated to give the 5.7L Hemi V8 engine a sophisticated, deeper-than-stock tone under acceleration. This cat-back configuration provides just the right amount of trail-ready performance presence while relying on advanced straight-through internals backed by Borla's official No-Drone Guarantee to keep the cabin completely quiet and drone-free during long highway road trips, daily commuting, or technical crawling.
The internal engineering of the Borla 140158 targets key factory flow restrictions by incorporating an upgraded high-efficiency layout featuring a large 3-inch diameter inlet pipe leading into the muffler with a 2.5-inch diameter exit pipe. This system utilizes oversized tubing and ultra-smooth mandrel bends to maximize exhaust velocity, unleash hidden horsepower, improve throttle response, and enhance fuel economy on or off the trail. Built completely from premium-grade, aircraft-quality T-304 austenitic stainless steel, this ultra-lightweight setup approaches half the physical weight of the bulky factory assembly and defends permanently against structural degradation, extreme under-vehicle heat cycling, and severe trail corrosion from mud, water, or road salt. The spent exhaust gases route cleanly to a traditional single right rear exit layout behind the passenger side wheel well, finished with a massive 14-inch long, Borla-embossed 4-inch round rolled edge bright chrome on T-304 stainless steel tip. Precision CNC-manufactured for an accurate line-to-line bolt-on fitment, this system utilizes all factory hanger locations and is backed by Borla’s legendary lifetime Million-Mile Warranty.
Chassis & Configuration Notes: This cat-back system is engineered specifically for the third-generation Jeep Grand Cherokee WK platform powered by the 5.7L Hemi V8 engine. It is fully compatible with the factory Automatic transmission, fits both 2-Wheel Drive (2WD) and 4-Wheel Drive (4WD) / All-Wheel Drive (AWD) layouts, and accommodates standard 4-Door Sport Utility Vehicle (SUV) body styles. It is not designed to fit alternative engine variants like the 3.7L/4.7L or the high-output 6.1L SRT8 rear bumper cutout configurations without modification.
Features
- Tame Touring Acoustic Profile: Delivers a sophisticated, clean, and deep tone that is slightly louder than stock with an ultra-quiet cabin presence
- Lightweight Performance Design: Aircraft-grade T-304 construction drops significant dead weight, approaching half the mass of the original equipment layout
- Oversized High-Flow Path: Precision-engineered 3" muffler inlet to 2.5" outlet piping layout minimizes backpressure to unleash hidden V8 power
- Borla No-Drone Guarantee: Advanced straight-through and multi-core acoustics ensure an upgraded exterior note with absolute zero cab resonance
- Constructed completely from premium-grade T-304 austenitic stainless steel for permanent structural integrity and ultimate rust resistance
- Bold Embossed Styling: Finished with an eye-catching 14" long, Borla-embossed 4-inch round rolled edge bright chrome tip
- Traditional Trail Placement: Truck single right rear exit configuration routes cleanly behind the rear passenger-side tire for optimal underbody clearance
- True Bolt-On Architecture: Precision computer-controlled numerical control (CNC) manufacturing ensures an accurate, line-to-line fitment
- Backed by Borla's unmatched, industry-leading written Million-Mile Warranty
Detailed Vehicle Fitment Breakdown
Compatible Model Years:
This system fits the following individual model years under the specific chassis, body, engine, and drivetrain constraints listed below: 2005, 2006, 2007, 2008, 2009, 2010 Jeep Grand Cherokee (WK Platform Only).
Jeep Grand Cherokee Fitment Breakdown (5.7L Hemi V8 2WD/4WD):
Fits 4-Door SUV models with Automatic Transmissions:
- 2005 Jeep Grand Cherokee: 5.7L Hemi V8 (4-Door SUV; 2WD / 4WD)
- 2006 Jeep Grand Cherokee: 5.7L Hemi V8 (4-Door SUV; 2WD / 4WD)
- 2007 Jeep Grand Cherokee: 5.7L Hemi V8 (4-Door SUV; 2WD / 4WD)
- 2008 Jeep Grand Cherokee: 5.7L Hemi V8 (4-Door SUV; 2WD / 4WD)
- 2009 Jeep Grand Cherokee: 5.7L Hemi V8 (4-Door SUV; 2WD / 4WD)
- 2010 Jeep Grand Cherokee: 5.7L Hemi V8 (4-Door SUV; 2WD / 4WD)
Important Application & Compatibility Notes:
- **WK Platform Exclusive:** Tailored strictly for the Grand Cherokee WK body style. Will **NOT** fit standard compact Cherokee XJ or alternative Jeep platforms.
- **Engine Restrictions:** Engineered strictly for the 5.7L Hemi V8 engine bay and mid-pipe layout. Will not accommodate 3.7L, 4.7L, or 6.1L SRT8 models.
- **Premium Materials:** Built entirely with authentic T-304 stainless steel to deliver superior rust resistance over lower-grade T-400 series choices.
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