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Stillen

Cat-Back Exhaust System

Name: Cat-Back Exhaust System
Brand: Stillen
SKU: 504445
Price: 1452.65 USD
Availability: InStock

$1,452.65

SKU: 504445

In Stock

Ships by Aug 31

Free Shipping over $200

$100 Minimum Order

30 Days Return

Description

The Stillen 504445 Near Cat-Back Exhaust System is meticulously engineered for the 2006-2010 Infiniti M45, offering both RWD and AWD applications. This exhaust system is constructed entirely from T304 polished stainless steel, encompassing the tips, end pipes, and mufflers, ensuring longevity and a refined aesthetic. Each component features 100 percent mandrel-bent tubing, which is crucial for maximizing exhaust flow and performance. Owners can expect a performance increase of up to 7 WHP (wheel horsepower) and 12 WTQ (wheel torque). The sound profile is characterized by a mild note at idle, a more subdued tone while cruising, and an aggressive note when under throttle.

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

Brand	Stillen
Part Number	504445
Category	Exhaust

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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.

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