Thanks for contacting us! We'll get back to you as soon as possible

MagnaFlow HM Grade Manifold Converter 50709 for the 2001-2010 Lexus SC430 / GS430

}

MagnaFlow 50709 main product photo, alternate angle 2

}

MagnaFlow 50709 hm grade manifold converter, rear three-quarter view of the turntable spin

}

MagnaFlow 50709 hm grade manifold converter, front three-quarter view of the turntable spin

}

MagnaFlow 50709 hm grade manifold converter, side view of the turntable spin

}

MagnaFlow 50709 hm grade manifold converter, opposite front three-quarter view of the turntable spin

}

MagnaFlow 50709 hm grade manifold converter, opposite rear three-quarter view of the turntable spin

}

MagnaFlow 50709 hm grade manifold converter, rear view of the turntable spin

}

MagnaFlow 50709 hm grade manifold converter, opposite side view of the turntable spin

}

MagnaFlow HM Grade Manifold Converter 2001-2010 Lexus SC430 / GS430

Ask an expert

Brand: MagnaflowSKU / Part #: MAG50709

Regular price: $484.00
Regular price: ~~$484.00~~
Sale price: $484.00
Unit price: per

Apply at checkout

Subtotal: $484.00

Quantity:

MagnaFlow HM Grade Manifold Converter 2001-2010 Lexus SC430 / GS430

Subtotal: $484.00

Not sure it fits? Text us your VINSee all fitment

Questions before you buy? Talk to a specialist.

Fitment and product questions · 9am–6pm Pacific

Call(310) 231-0292 Text(310) 886-3111 ChatLive chat

Price match: found it cheaper?
Secure checkout · Shop Pay · Affirm
AutoTalent since 2006

Free Shipping

Free standard shipping on orders over $99

Coupon Code on First Order

Price Match Guarantee

Free shipping on $99+ order

30-days Returns

Overview

A clogged or failed catalyst on the 2001-2010 Lexus SC430 / GS430 4.3L is replaced by MagnaFlow 50709. It is Federal/EPA compliant and installs at the stock mounting points. Listed applications: 2002-2010 Lexus SC430 (Base), 2001-2007 Lexus GS430 (Base) and 2001-2006 Lexus LS430 (Base). It interchanges with OE 18450-50350. It ships at roughly 8 lb.

Features

Federal/EPA compliant; not for California, Colorado or New York
Manifold and catalyst arrive as one assembly
Replaces OE 18450-50350
Fits 2002-2010 Lexus SC430: Base
Fits 2001-2007 Lexus GS430: Base
Fits 2001-2006 Lexus LS430: Base

What is in the box

Gaskets and mounting hardware for installation

Specs

Part number	50709
Type	HM Grade Manifold Converter
Emissions	Federal/EPA compliant (not for CARB states)
Grade	HM Grade
Material	16-gauge 409 stainless steel
Replaces OE	18450-50350
Shipping weight	8 lb

Construction

Federal/EPA compliant for use in the 46 non-CARB states
Manifold and catalyst in one bolt-on assembly
Bolts in where the original sat, with no cutting or welding
Body and pipes in 16-gauge 409 stainless steel
Spun body closed with a single laser-fusion weld to resist leaks
Mandrel-bent inlet and outlet pipes keep factory flow
OE-sized 410 stainless hangers
308 stainless MIG welds
Shape developed from 3D scans of the original part
Replaces OE part 18450-50350

Installation

Direct-fit and bolt-on; a capable DIYer can install it with the right tools, though professional installation is recommended.

Fitment notes

Sold for federal (EPA) emissions use only; it cannot be sold or installed in California, Colorado or New York. Check the fitment table below against your vehicle, including trim and engine.

Fitment

Make	Model	Chassis	Year	Engine
Lexus	SC430 (Base)	—	2002-2010	4.3L
Lexus	GS430 (Base)	—	2001-2007	4.3L
Lexus	LS430 (Base)	—	2001-2006	4.3L

Fitment

Year	Make	Model
2002–2010	Lexus	SC430
2001–2007	Lexus	GS430
2001–2006	Lexus	LS430

Not sure? Text us your VIN and we’ll confirm.

Shipping & returns

Shipping: Orders ship via UPS, FedEx or USPS, from our facility near Los Angeles or directly from the manufacturer. Rates for many items are weight-based and shown at checkout. If you need it by a certain date, text us before you order.

Returns: Unused items in brand-new condition and original packaging can be returned within 30 days of the invoice date, with a 25% restocking fee unless otherwise specified. In some cases we can offer a lower fee with the balance as store credit. Shipping charges aren't refundable in either direction unless approved by AutoTalent.

Not returnable: special-order or custom items, and anything that has been installed, modified or altered.

Cancellations: free if the item is out of stock or we miss the ETA you agreed to. Other cancellations carry a 5% processing fee to cover card fees we can't recover. Special-order items can't be cancelled.

Damaged in transit? Report it to the carrier and to us within 48 hours, keep all packaging, and don't send anything back without our written approval.

Reviews & questions