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Every order ships free with tracking. Dispatch is usually within 1–2 working days and delivery within 3–8 working days.
Email us your order number within 30 days of delivery and we send the return steps the same working day. Refunds within 5 working days of receipt.
Send your registration or make, model and year to britishgarage.co.uk@gmail.com and we check the listing details against it before you order.
Flowmaster Super 44 Series chambered muffler (3.00" center in/center out) delivers a deep, aggressive two-chamber exhaust tone with improved scavenging and compact fitment for tight installations.
The Super 44 is Flowmaster’s next step after the classic 40 Series: a dual-chamber design tuned to produce a thicker, more aggressive exterior sound while controlling interior resonance and boosting exhaust flow. Built from 16‑gauge aluminized steel with full MIG welds, this compact 13" x 9.5" x 4.0" case fits where larger mufflers cannot and supports a wide range of performance and custom applications.
The Super 44 uses Delta Flow dual chambers sized and spaced differently to create a deeper, more pronounced exterior tone than single-chamber models. You get aggressive sound at the tailpipes with moderated cabin resonance so it feels loud and muscular outside while remaining tolerable inside the vehicle.
Yes — the dual‑chamber Delta Flow layout enhances scavenging and exhaust efficiency, which can improve throttle response and acceleration across the powerband. While gains depend on the rest of your exhaust and engine setup, the Super 44 is designed to complement street and strip builds by reducing backpressure where appropriate.
Flowmaster builds the Super 44 from 16‑gauge aluminized steel and MIG welds the assembly for durability under high heat and aggressive driving. That construction resists corrosion better than plain steel and the robust welds help prevent joint failure from vibration or repeated thermal cycling.
The Super 44 is a universal-style muffler with a compact 4" case designed for tighter clearances where larger units won’t fit. It’s offered with multiple inlet/outlet configurations to support custom installs, drop kits, engine swaps, and modified exhaust routing — measure available space and inlet/outlet sizes to confirm fitment for your vehicle.
Who is this for: The Flowmaster Super 44 is aimed at enthusiasts who want a deeper, more aggressive exhaust tone and improved throttle response from a compact, durable muffler. It’s ideal for daily drivers that need moderate cabin comfort, street/strip cars seeking a muscular voice, and builders working in tight chassis or custom routing situations who still want proven Flowmaster sound and performance.
Q: Does the Super 44 fit tight exhaust clearances?
A: Yes. Its compact 13" x 9.5" x 4.0" case is designed for tight spaces and custom routing where larger mufflers won’t fit.
Q: What inlet/outlet size does this model use?
A: This unit is a 3.00" center in/center out configuration; other inlet/outlet options are available for different builds.
Delivery: free tracked delivery to every UK postcode on every order. Most orders are dispatched within 1–2 working days and arrive within 3–8 working days; you receive a tracking link by email as soon as it ships.
Returns: 30 days from delivery to return any unused item in its original packaging. Email us with your order number and we send the return instructions the same working day. Refunds go back to your original payment method within 5 working days of the item arriving with us.
Faulty or wrong item? Tell us within 30 days and we replace or refund it, including the return postage.
Seasonal UK driving advice and a heads-up when new stock lands. No spam, unsubscribe any time.
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