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DINAN VALVED AXLE-BACK EXHAUST WITH POLISHED TIPS FOR G42 BMW M240I AND M240I XDRIVE

Name: DINAN VALVED AXLE-BACK EXHAUST WITH POLISHED TIPS FOR G42 BMW M240I AND M240I XDRIVE
SKU: D660-0098
Price: 2399.95 USD
Availability: InStock

SKU: D660-0098

Dinan

$2,399.95

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OEM-quality fitment for precise installation.

Sourced from certified, top-tier automotive brands.

Dinan Valved Axle-Back Exhaust with Polished Tips for G42 BMW M240i and M240i xDrive

Dinan G42 M240i polished exhaust adds a second electronic valve alongside the factory actuator, giving the system full control over sound instead of leaving it to the one stock valve alone. Larger 76mm piping and dual 76mm valves, 30% less restrictive than the factory units, feed four double-walled, straight-cut 102mm tips finished in polished stainless, so the exhaust can stay closed and civil in town or open up for a deeper, straight-pipe-style tone on demand. Dinan builds the system in 100% T304 stainless steel and backs the upgrade with the same warranty philosophy it has used since partnering with BMW of North America in 1996.

Design and Performance

With both valves closed, exhaust gases are forced through the muffler for a quiet, civil cruise; open them and gas flows freely through the entire system for a deeper, meatier tone with real drone abatement built in for the highway. Dinan pairs that valve control with a genuine dyno gain and a lighter system than stock, so the M240i and M240i xDrive pick up sound and response without adding weight.

Features

100% T304 stainless steel construction, TIG-welded, brushed finish
Dual 76mm electronic exhaust valves, 30% less restrictive than the factory valve
Four double-walled, straight-cut 102mm tips, 4-inch clamp-on, finished in polished stainless with a laser-engraved Dinan logo
Larger 76mm mid-pipe (up from the stock 70mm)
Level-1 install difficulty
Emissions Code 5 rated; street legal in all 50 states

Applications

BMW M240i: G42 | 2023-2026 | 3.0L Turbo I6 B58
BMW M240i xDrive: G42 | 2023-2026 | 3.0L Turbo I6 B58

Notes

A black-tip version is available as Dinan part number D660-0098-BLK
Adds a dedicated second exhaust valve alongside the factory actuator for independent sound control
Uses factory-style mounting hardware for a direct, no-fabrication install

Frequently Asked Questions

Does the Dinan G42 M240i polished exhaust fit both the M240i and M240i xDrive? Yes. It’s built for the G42 BMW M240i and M240i xDrive from the 2023 through 2026 model years. Dinan includes factory-style mounting hardware and clamps for a direct installation with no fabrication required on either drivetrain.
How does the dual-valve design on the Dinan G42 M240i polished exhaust work? The system adds a second electronic valve alongside the factory actuator. With both valves closed, exhaust gases route through the muffler for a quiet, civil cruise; opening them lets gas flow freely through the entire system for a deeper, more aggressive tone on demand.
How difficult is the Dinan G42 M240i polished exhaust to install? Dinan rates the job at about 2.5 labor hours using factory-style mounting hardware and clamps, with no cutting, welding, or fabrication required.
What is the Dinan G42 M240i polished exhaust made from? It’s built from 100% T304 stainless steel with TIG-welded construction and a brushed finish, paired with dual 76mm electronic valves that are 30% less restrictive than the factory units and four double-walled, polished tips.
How much horsepower does the Dinan G42 M240i polished exhaust add? Dinan measured a peak gain of 6 hp and 5 ft-lb of torque at 6,600 rpm on the dyno, with larger 76mm piping and dual valves that flow more freely than the factory system while running about 4 lbs lighter overall.
Is the Dinan G42 M240i polished exhaust street legal? Yes. It carries an Emissions Code 5 rating, meaning it’s legal for street use in all 50 states, since the factory catalytic converters and emissions equipment stay in place; only the sound and flow downstream of them change.

About Dinan

Founded in 1979, Dinan is North America’s leading BMW tuner, developing, manufacturing, and marketing a full line of high-performance products for BMW, MINI, and Mercedes-Benz. Dinan works through a nationwide network of Authorized Dinan Performance Centers, including select BMW dealerships and independent BMW service and performance shops. The company’s warranty program, introduced in 1996 with BMW of North America’s cooperation, matches BMW’s new car warranty and covers Dinan enhancements and the vehicle itself for up to 4 years or 50,000 miles. That coverage lets BMW owners add real performance without risking their factory warranty. Automotive publications have tested Dinan-enhanced BMWs against some of the world’s most exotic sports cars for three decades, and the results consistently hold up. Despite that performance, Dinan BMWs keep the reliability and everyday civility BMW owners expect. The product line spans engine, driveline, and chassis components across the full BMW lineup, covering acceleration, cornering, and stopping power. Every Authorized Dinan Performance Center can help build anything from a single upgrade to a complete Dinan BMW.

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Please review the product dimensions carefully to ensure the right fit for your space
Color may vary slightly due to lighting and screen settings
Materials and finishes are selected for both durability and visual appeal
Some items may require simple assembly upon delivery
Perfect for both everyday use and long-term comfort

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Product Size Guide

Please refer to the general size reference below to better understand how this product may fit into your space. Dimensions may vary slightly depending on the design and materials.

Category	Small	Medium	Large
Decor & Accessories	Up to 10″	10″ – 20″	20″+
Tables	Up to 30″	30″ – 60″	60″+
Seating	1 Seater	2–3 Seater	4+ Seater
Storage Units	Compact	Standard	Large Capacity
Lighting	Small Fixture	Standard Fixture	Large Fixture

Note: For exact product dimensions, please refer to the specifications section above. This guide is intended as a general reference only.

DINAN VALVED AXLE-BACK EXHAUST WITH POLISHED TIPS FOR G42 BMW M240I AND M240I XDRIVE

$2,399.95 Add to Cart

DINAN VALVED AXLE-BACK EXHAUST WITH POLISHED TIPS FOR G42 BMW M240I AND M240I XDRIVE