MagnaFlow Exhaust, Mufflers & Cat Converters - Quality

MagnaFlow 1997-1998 BMW 540i 4.4L / 1996-1998 BMW 740iL 4.4L California Grade CARB Compliant Direct-Fit Catalytic Converter 4481682

MagnaFlow 1997-1998 BMW 540i 4.4L / 1996-1998 BMW 740iL 4.4L California Grade - Main image
$933 $1555 In stock

Category: Catalytic Converter

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4481682. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This Direct-Fit Catalytic Converter is designed to fit the 1997-1998 BMW 540i 4.4L & 1996-1998 BMW 740iL 4.4L. MagnaFlow 4481682 includes (2) Donut Gaskets and interchanges with OE parts 18 30 1 437 353, 18 30 1 709 617, 18 30 1 745 128, 18 30 1 745 665, 18 30 7 505 321. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

William Q. ★★★★★

The welds on the flanges are really clean, which made bolting it up to the stock exhaust a breeze. My 740iL passed smog with no issues and the engine light stayed off after the first drive cycle.

Miles F. ★★★★★

Installation was straightforward on my 540i, and the mandrel-bent tubing gave me noticeably better throttle response. It passed smog without any issues, so that peace of mind is worth it.

Aurora ★★★★★

Dropped this in on my 740iL and the check engine light stayed off, which was the main goal. The corrosion-resistant shell gives me confidence it'll last through salty winters.