Part #140078 Lead The Heard

2004-2008 Mazda RX-8 Cat-Back Exhaust System S-Type Part # 140078

RX-8 04-08 1.3L 2 CYL MT RWD 4 140078
BUY DIRECT MSRP: $1,007.99

BORLA® Performance Industries has a great Cat-Back™ system for the 2004-08 Mazda RX-8 equipped with a 1.3L rotary engine and automatic or manual transmission.

This system (part #140078) installs to the flange located just after the catalytic converter and is made from premium, high-quality austenitic T-304 stainless steel. BORLA® incorporates a single 3” mandrel bent inlet pipe leading to a 19” long, 10” wide transverse flow muffler. Exiting the muffler are two 2.25” tailpipe tip assemblies. It is a split rear system with a 4” BORLA® embossed single round, rolled edge, angle cut polished T-304 stainless steel tip at each exit.

The logics of automatic engineering kick in telling us that if we are increasing flow by this amount and making appropriate enhancements on the induction side, then the power numbers will be more dramatic. In fact, the BORLA® Exhaust for the RX-8 has a flow increase of 200CFM over stock, gains about 10 horsepower and is a full 6 pounds lighter than the factory system. This is a great hot rod, and the BORLA® system has the unbeatable combination of quality, performance, ease of installation and legendary BORLA® Sound of Power.

BORLA® Performance Industries, the original pioneers of high quality, T-304 austenitic stainless steel (superior to T-409 or aluminized steel) free flow exhaust utilizes its patented award and race winning technology to deliver quality, sound, performance gains and enhanced fuel economy – all with an easy bolt-on installation. All BORLA® street products carry the famous BORLA® written million-mile warranty.

Warranty Valve Note: BORLA only warranties moving parts, such as valves and actuators for one year. This system includes functioning active exhaust valves, similar to those in the stock exhaust, and is recommended for most customers. Active exhaust valves in this system will improve sound quality.
Warranty Valve Simulator Note: BORLA only warranties moving parts, such as valves and actuators for one year. This system includes active exhaust valve simulators and is recommended for cars with significant modifications. The active exhaust valves in the stock exhaust have been removed, valve simulator mounts on the outside of the pipe allow the stock valve motors to be re-attached to prevent an error code.
Warranty Finish Note: BORLA exhaust systems are covered under our Million-Mile warranty with the following exceptions. Borla will warranty black coatings, tip finishes, and carbon fiber parts for one year.
WARNING: This product in the physical form it is sold does not present a hazard. However, operations including, but not limited to welding, brazing, or thermal cutting can expose you to chemicals including Chromium, Nickel, Cobalt, Arsenic, Cadmium and Lead which are known to the State Of California to cause cancer, birth defects and other reproductive harm. For more information go to
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