One-Click Horsepower: Curated Stage 2
Bundles for the Dodge Challenger

The American Racing Headers cat-back exhaust system is the halo upgrade that separates Stage 2 from Stage 1. Built from 304 stainless steel with 3-inch mandrel-bent tubing, the ARH system replaces the restrictive factory exhaust from the catalytic converters back, dramatically improving exhaust gas flow and unlocking power that the stock system leaves on the table. The aggressive yet refined exhaust note transforms the Challenger’s presence on the road.

Combined with the aFe intake feeding cooler air, Ripp coils delivering 50% stronger spark, E3 plugs ensuring complete combustion, and the 90mm throttle body eliminating the intake restriction, the exhaust completes the airflow loop for maximum bolt-on performance. All five components work as a system — +69 HP combined, installed in an afternoon with basic hand tools, no tune required.

The MBRP cat-back exhaust system is the centerpiece of this Stage 2 bundle. Built from T304 stainless steel with 3-inch mandrel-bent piping and a dual split rear exit, it replaces the restrictive factory exhaust to dramatically improve exhaust gas velocity and flow. The 4.5-inch polished stainless tips provide a clean, aggressive look, while the deep HEMI rumble transforms the R/T’s presence on the road and at the strip.

With the aFe intake pulling cooler air in, the 90mm throttle body eliminating the intake bottleneck, Ripp coils delivering +20 HP from spark energy, and E3 plugs ensuring complete combustion, the MBRP exhaust completes the airflow circuit for +70 HP combined. The entire system installs with basic hand tools in 3–5 hours — no tune, no wiring, no shop time required.

The aFe MACH Force-Xp cat-back exhaust system is engineered specifically for high-performance HEMI applications. Built from 304 stainless steel with 3-inch mandrel-bent tubing, the system replaces the restrictive factory exhaust from the catalytic converters back. The precision-tuned design optimizes exhaust gas velocity for the 6.1L SRT8’s higher flow demands, delivering a deep, commanding exhaust note that matches the SRT8’s performance character.

Paired with the aFe intake feeding cooler, denser air, the 90mm throttle body eliminating the intake restriction, Ripp coils boosting spark energy by +20 HP, and E3 plugs ensuring complete combustion, the MACH Force-Xp exhaust completes the five-component system for +70 HP combined. Everything installs with basic hand tools in 3–5 hours, uses factory mounting points, and requires no tune.

The American Racing Headers cat-back exhaust system is the halo upgrade in this Stage 2 bundle. Built from 304 stainless steel with 3-inch mandrel-bent tubing, the ARH system replaces the restrictive factory exhaust to dramatically improve exhaust gas flow and unlock power the stock system leaves trapped. The aggressive yet refined tone transforms the SXT’s road presence without crossing into drone territory at cruise.

Combined with the aFe Momentum GT’s +29% airflow improvement, CARB-certified Ripp coils delivering 53.6 mJ of spark energy, E3 DiamondFIRE plugs for optimal combustion, and the 90mm throttle body eliminating the intake bottleneck, this five-component system delivers +78 HP combined. The most powerful bolt-on upgrade available for the Pentastar V6 Challenger — installed in an afternoon with basic hand tools.

The MBRP cat-back exhaust system is the centerpiece of this Stage 2 bundle. Built from T304 stainless steel with 3-inch mandrel-bent piping, the dual split rear exit system replaces the restrictive factory exhaust to significantly improve exhaust gas velocity and backpressure relief. The 4.5-inch polished stainless tips deliver a clean, aggressive look, while the deep HEMI rumble at idle and bark at wide-open throttle transform the R/T’s character.

With the aFe Momentum GT feeding cooler air through a 10-inch radial flow filter, the 90mm throttle body replacing the factory 80mm unit for +12.5% more airflow, Ripp coils boosting spark energy by +20 HP, and E3 plugs maximizing combustion efficiency, the MBRP exhaust completes the loop for +77 HP combined. Five components, one afternoon, no tune — the complete Stage 2 upgrade for R/T owners.

The aFe MACH Force-Xp cat-back exhaust system is the halo upgrade for the 392 HEMI Stage 2 build. Built from 304 stainless steel with 3-inch mandrel-bent tubing, the system is specifically engineered for the 6.4L’s higher exhaust volume and flow characteristics. The precision-tuned design delivers a deep, commanding exhaust note that matches the 392’s aggressive performance character while eliminating the restrictive factory exhaust path.

When paired with the aFe Momentum GT intake, 90mm throttle body replacing the factory 80mm unit, Ripp coils delivering +20 HP from enhanced spark energy, and E3 DiamondFIRE plugs maximizing combustion efficiency, the MACH Force-Xp completes the five-component system for +76 HP combined. The most effective bolt-on package available for the SRT 392 Challenger — no tune, no wiring, no downtime.

The Borla ATAK cat-back exhaust system is the halo upgrade in this Stage 2 bundle. Built from T304 stainless steel that will never rust, the ATAK design uses Borla’s Acoustically Tuned Applied Kinetics technology to deliver the most aggressive exhaust tone in their lineup. The system maximizes exhaust flow for measurable horsepower gains while reusing factory exhaust tips for a clean, OEM-integrated appearance — the aggression is all in the sound and performance.

Combined with the aFe Momentum GT’s +29% airflow improvement, CARB-certified Ripp coils delivering 53.6 mJ of spark energy, E3 DiamondFIRE plugs for optimal combustion, and the BBK 78mm throttle body replacing the factory 72mm unit, this five-component system delivers +78 HP combined. The most effective bolt-on package available for SXT and GT Challenger owners who want real performance without a tune.

The aFe MACH Force-Xp cat-back exhaust is the halo upgrade in this Stage 2 bundle. This rear-section system is built from 304 stainless steel with 3-inch mandrel-bent piping, engineered specifically for the 2015–2023 R/T’s 5.7L HEMI. The precision-tuned design improves exhaust gas velocity while delivering a deep, aggressive HEMI V8 tone that transforms the R/T’s character — pronounced rumble at idle, strong bark under throttle, and no drone at highway cruise.

Paired with the aFe Momentum GT’s 10-inch radial flow filter feeding cooler air, the 90mm throttle body replacing the factory 80mm for +12.5% more airflow, Ripp coils delivering +20 HP from enhanced spark energy, and E3 DiamondFIRE plugs ensuring complete combustion, the MACH Force-Xp completes the airflow loop for +77 HP combined. The definitive Stage 2 package for R/T owners who want maximum bolt-on performance without a tune.

The aFe MACH Force-Xp cat-back exhaust with NO muffler is the most aggressive exhaust option FastHemis offers for the 392 HEMI Challenger. Built from 304 stainless steel with 3-inch mandrel-bent piping covering both front and rear sections, the muffler-delete design delivers maximum exhaust flow and the rawest 392 HEMI sound possible. This is not a subtle upgrade — the no-muffler design produces a thunderous, race-ready tone that announces every throttle input.

Combined with the aFe Momentum GT intake, 90mm throttle body replacing the factory 80mm for +12.5% more airflow, Ripp coils delivering +20 HP from enhanced spark energy, and E3 DiamondFIRE plugs for peak combustion efficiency, the MACH Force-Xp completes the ultimate five-component bolt-on package for +76 HP combined. Widebody compatible, no tune required, and installed in an afternoon — the definitive Stage 2 for Scat Pack owners who want it all.