Exhaust Exhaust Pipes, Systems and Components

RoadsterSport

2.5-Inch Cat-Back Exhaust System

$749.00

SKU: 904-264

In Stock
In Stock
Ships by Aug 5
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The RoadsterSport II Dual Muffler is engineered for performance and sound customization for your MX-5 Miata. Constructed from durable 304 stainless steel and polished to a mirror finish, this exhaust system features dual 3-inch tips. The internal design incorporates 2-inch muffler tubing to optimize exhaust gas velocity, contributing to horsepower gains, while the 2.5-inch connection size ensures maximum flow. Version II improvements include reinforced hangers and enhanced insulation for a refined, mild sound profile. For those seeking to tune their exhaust note, the RoadsterSport II includes removable baffle inserts. Install the baffles for a sporty sound, remove them for a louder experience, or purchase additional baffles for the quietest possible tone. This exhaust is designed as a direct bolt-on application for 2006-2015 Mazda MX-5 Miatas, excluding models with the Appearance Package. The manufacturer claims an increase of approximately 8 horsepower.

MIA's Description

It features 2.5-inch connections for maximum flow and horsepower, with 2-inch muffler tubing to maintain exhaust gas velocity. This system offers a simple bolt-on installation and includes all necessary hardware, including a gasket. The muffler comes with removable baffle inserts for adjustable sound levels and is backed by a lifetime warranty.

Fitment

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Specifications

BrandRoadsterSport
Part Number904-264
CategoryExhaust

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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