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Exhaust› Mufflers and Resonators

Good-Win Racing

RoadsterSport Super-Q Dual Tip Back Box

$1,849.00 $1,799.00 Save $50.00

SKU: 61-1958

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Special Order
Ships in 4–6 weeks
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$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The RoadsterSport Super-Q Dual Tip Back Box is a refined muffler system for the Mazda MX-5 ND. It delivers a deeper tone without excessive volume or cabin drone, making it ideal for daily driving. The system features a triple-chamber internal layout with a precisely tuned Helmholtz resonator to cancel midrange drone frequencies.

Constructed from 304 stainless steel with mandrel bends and precision welds, this back box weighs 10.9kg (24lbs) and includes dual polished rolled tips with a side-entry flow design.
Show original supplier description
The RoadsterSport Super-Q Dual Tip Back Box is engineered for the Mazda MX-5 ND, offering a more refined exhaust note that balances a sporty sound during acceleration with quiet cruising. At the heart of the Super-Q is a sophisticated triple-chamber internal design, incorporating a precisely tuned Helmholtz resonator. This resonator actively cancels midrange cabin drone frequencies by over 50 dB, resulting in an exhaust experience that is both exhilarating when pushed and composed during normal driving. The side-entry flow design allows for smoother internal routing and tailored sound attenuation. Crafted from durable 304 stainless steel, the back box features smooth mandrel bends and precision welds, ensuring longevity and optimal performance. It weighs 10.9kg (24lbs) and is finished with dual polished rolled tips for a clean, factory-plus aesthetic. This exhaust system is ideal for daily-driven ND models, whether stock or with mild performance modifications. The RoadsterSport Super-Q Dual Tip Back Box is backed by a lifetime warranty and is designed for a direct fit on Mazda MX-5 ND models (Mk4, 2015 onwards).

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandGood-Win Racing
Part Number61-1958
CategoryExhaust
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Returns & Fitment

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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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