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Exhaust› Exhaust Pipes, Systems and Components

Thermal

3-Inch 304 Stainless Steel Cat-Back Exhaust

$715.78 $674.10 Save $41.68

SKU: B153-C152

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 Thermal R&D cat-back exhaust system is precision-engineered for the 2006-2011 Honda Civic Si, offering a significant upgrade in performance and sound. The straight-through muffler design is optimized for maximum performance, providing an aggressive exhaust note expected from a performance exhaust system. Thermal R&D prioritizes sound quality and manufacturing excellence, ensuring a superior fit and finish for both street and track applications. This exhaust is specifically designed for the 4-door sedan models (part number B153-C152). It is noted that this exhaust will only connect to race headers, and an adapter may be required for OEM headers.

MIA's Description

The Thermal R&D cat-back exhaust is designed for the 2006-2011 Honda Civic Si.

This system features 3-inch diameter tubing and a 4-inch diameter tip, constructed from 304-grade stainless steel.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandThermal
Part NumberB153-C152
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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