A Stainless Catback for the 4th Gen 4Runner V8
The Rev9 FlowMAXX catback exhaust replaces the restrictive factory rear exhaust on the 2003-2009 Toyota 4Runner 4.7L V8 with 2.5-inch stainless steel piping, a built-in resonator, and a cleaner rear-exit finish. It is a direct-fit system for the 4th Gen V8 4Runner and keeps the factory emissions components in place.
Fitment Information
- Toyota 4Runner 4th Gen N210, UZN210, GRN210 4.7L 2UZ-FE V8 (2003, 2004, 2005, 2006, 2007, 2008, 2009)
- SR5, Sport Edition, Limited trims with the 4.7L V8
Fitment Note
This exhaust fits 4th Gen 4Runner models with the 4.7L V8 only. It does not fit the 4.0L V6. Rev9 notes that 2003 models use a long flanged pipe, while 2004-2009 models use a shorter flanged pipe. Compare your factory exhaust connection with the product photos before installation.
Emissions Note
The CB-033 is a catback exhaust. It replaces the exhaust behind the factory catalytic converter and does not replace the exhaust manifolds, Y-pipe, front pipes, or catalytic converters.
Specs and Features
-
Exhaust System
- Rev9 FlowMAXX stainless catback exhaust
- Manufacturer part number: CB-033
- Direct-fit replacement for compatible factory rear exhaust components
- Installation hardware included
-
Construction
- 2.5-inch T201 stainless steel exhaust piping
- Stainless steel resonator and muffler construction
- Fully polished double-wall exhaust tip finish
- Total system weight: approximately 32 pounds
-
Resonator
- 17.5-inch long x 5-inch wide x 7.5-inch tall resonator
- Designed to keep the V8 exhaust note deeper while smoothing the exhaust flow
Product Description
The Rev9 FlowMAXX catback is a straightforward exhaust upgrade for the 4th Gen 4Runner with the 4.7L V8. The larger 2.5-inch stainless system replaces the factory rear exhaust with fewer bends, a resonator, and a polished tip that better suits the V8 4Runner.
Because it is a catback, the factory catalytic converters and front exhaust sections remain in place. That makes this a sensible choice for owners replacing a rusted or tired factory exhaust who want a deeper V8 sound without changing the emissions equipment or getting into a header and Y-pipe installation.
Rev9 FlowMAXX 4th Gen 4Runner Exhaust Video
The video shows the FlowMAXX exhaust on a 4th Gen 4Runner. Use it with the product photos to get a better look at the routing, resonator placement, and rear exit.
What This Catback Replaces on Your 4Runner
CB-033 is not a header, manifold, or Y-pipe kit. It starts after the factory catalytic converter and replaces the rear exhaust sections. That means it can be installed on a stock 4.7L V8 4Runner without changing the factory manifolds or catalytic converters.
Related Upgrades for Your 4th Gen 4Runner V8
- K&N Air Charger Cold Air Intake for 2003-2004 4Runner V8 - A matching intake upgrade for early 4th Gen 4Runner 4.7L models.
- K&N Air Charger Cold Air Intake for 2005-2008 4Runner V8 - A vehicle-specific intake option for later 4th Gen 4Runner V8 models.
- HPS Silicone Radiator Hoses for 2003-2009 4Runner V8 - A practical cooling-system refresh for every year supported by this exhaust.
About Rev9
Rev9 offers vehicle-specific performance and replacement upgrades for popular import, truck, and SUV platforms. Its lineup includes exhaust systems, coilovers, suspension arms, intake parts, cooling components, and exterior accessories for owners building reliable street and project vehicles.
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Rev9 Exhaust Systems
Toyota 4Runner Exhaust
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