Now available from LoudMouth is the Stainless Steel Modular Cat-Back Exhaust System for the 2009-2014 Challenger 5.7L HEMI R/T. It is available in LoudMouth®, LoudMouth II® and PowerFlo® designs. Thanks to the modular design, either resonators or mufflers can be ordered individually and interchanged separately. The 2021 Dodge Durango can tow up to 8,700 lbs with lots of go-fast goodies This 2021 Dodge Durango R/T has a 5.7-liter Hemi V8 that makes 360 and 390 lb-ft SRT performance exhaust, and active #1: Engine Ticking Noise 2014 Challenger Average Cost to Fix: N/A Average Mileage: 4,000 mi. Learn More #2: A/C Blows Hot Air 2014 Challenger Average Cost to Fix: $1,900 Average Mileage: 61,000 mi The Hemi engine made a comeback in the early 2000s with modern enhancements such as fuel injection and two spark plugs per cylinder. Overall, Hemi V8 engines are generally reliable, with many WANT QUAD EXHAUST TIPS? CLICK THE LINK BELOW! This video shows you exactly what an exhaust leak on a Dodge Ram sounds like when a manifold bolt has sheared off (I have two in this video that have snapped Dodge 6.4 V8 headers are usually among the first considerations as mods for 6.4L V8 HEMI engines. (Due to affordability, and general ease of installation in comparison to bigger upgrades.) Upgraded headers will give any car an instant improvement in exhaust gas expulsion and acceleration. With Dodge killing the Charger and Challenger after the 2023 model year, it's yet unclear if the 6.2-liter supercharged V8 will live on in the 2024 TRX. 2003 - Present Third-Gen 5.7-Liter HEMI V8 If you want to see how I diagnosed this issue, check out my other video on why hemi engines fail. You can find the video here: This is Why Hemi Engines Failh 6.4 pros: 6.4 revs higher, that can be pleasing for anyone looking for that particular experience. It is louder stock - two reasons being the obvious 1. it has a bigger engine and 2. it has actual headers. 6.4 cons: At idle, it sounds like a truck. 5.7 Pros: I like the sound of it more. lWv072y.