MagnaFlow Exhaust, Mufflers & Cat Converters - Quality

MagnaFlow 2003-2004 Cadillac CTS 3.2L OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter 51137

MagnaFlow 2003-2004 Cadillac CTS 3.2L OEM Grade Federal / EPA Compliant - Main image
$392 $560 In stock

Category: Catalytic Converter

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 51137. 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 2003-2004 Cadillac CTS 3.2L. MagnaFlow 51137 includes (1) Crush Ring Gasket, (1) Flange Gasket, (4) Flat Washers, (2) Bolts, (2) Nuts. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

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

View policy

Customer Reviews (4.8 / 5 · 5 reviews)

Miles ★★★★★

The mandrel-bent tubing really made installation easier than I expected—everything lined up perfectly. Bolted right on in my driveway and the check engine light went off immediately. Solid upgrade for the price.

Leo T. ★★★★★

My old converter had a crack that threw a P0420 code, and this MagnaFlow unit cleared it completely. The mandrel-bent tubing and stainless steel body look solid underneath, and the car passed emissions without a hitch after installation.

Richard H. ★★★★★

Bolted right up in about an hour with no surprises, and the check engine light hasn't flickered since. The corrosion-resistant shell is a relief given our salty winter roads.