Free standard shipping on orders over $99
Special Note: This fits the M3 Sedan only.
Dinan is the most advanced research company in the BMW aftermarket. Winning back-to-back-to-back Rolex Series Daytona Prototype racing championships in 2010, 2011 & 2012 along with the top two podium spots in 2011 and winning in 2013 the grueling 24 Hours of Daytona as the engine supplier to Chip Ganassi Racing. You can rest assured that you are purchasing the most leading edge technology on the market. Who else do you want to tune your BMW if not the company that beats the competition in power and durability in the most competitive road racing circuit in the US.
The Helmholtz chamber is a resonance cavity that reduces the drone that most high performance exhausts have at light throttle cruise. In addition Dinan has a straight through single pipe design to further reduce noise at light throttle cruise so that it is a civilized exhaust that you can live with everyday.
Durability is also a primary concern at Dinan. Built from 100% 20 gauge-304 stainless steel to resist corrosion and backed by a 4 year/50,000 mile warranty new car factory matching warranty, the most comprehensive warranty in the business and double that of our competitors warranty (see Dinan Warranty Statement).
The design features quad 3.5" ceramic black tips for a tasteful high performance look.
Improve performance by 6 horsepower and 5 lb-ft of torque.
Benefits of the Free Flow Exhaust:
+ Single channel design
+ Sportier Sound
+ 100% 304 stainless steel construction
+ Simple installation using high quality BMW OEM clamps and hangers
+ Quad 3.5" laser engraved exhaust tips with Dinan logo
+ 6 HP & 5 lb-ft of torque
+ "Straight Through" canister design
+ Helmholtz chamber to remove drone
Contact Dinan Performance specialist @ 1-800-341-5480 for more information.
Dinan Performance Exhaust FAQ:
Does a louder exhaust make more power?
Not necessarily. A freer flowing exhaust makes more power by removing friction in the exhaust system but how loud an exhaust is has to do with how well you absorb the sound as it travels through the exhaust. You can have a straight through design and maximum power with today’s technology. It is possible and common for a loud exhaust to actually make less power than a stock exhaust. The best exhaust is the one that is the freest flowing and has a noise level that you enjoy.
What makes an exhaust "hummm" under light throttle?
This sound is commonly called "drone". It is caused by resonance in the exhaust system and can quickly give you a headache. Drone is the toughest characteristic to remove from an exhaust system. The use of a "hemholtz" chamber to work as a noise canceling device is a great option along with the use of butterfly valves when needed.
How are Dinan exhausts made?
All Dinan exhausts are designed and hand built in California at the Dinan Headquarters. They are welded by hand using precise tools to ensue perfect fit. All are built from 20 gauge-304 stainless steel for strength and corrosion resistance.
Does the kind of steel used matter?
Yes. Your car's exhaust is subjected to the elements and other harsh conditions that occur under a car. The exhaust gets hit with gravel, salt, water, sand and whatever else is on the road. Using high quality stainless steel keeps corrosion at bay in this tough environment.
Models Supported by Dinan Free Flow Exhaust for BMW M3 E90 Sedan 2008-2011
|Labor Hours/Installation Hours||1.60|
|Emission Status||50 State Emissions Legal|
|Max HP Gain||6 @ 6800 rpm|
|Max Torque Gain||5 lb/ft @ 6800 rpm|
|Included Notes||Included Item Details|
If you have any fitment questions, please feel free to reach out to our team via the contact methods below. If you are contacting us for any order status updates, please give us a call, or email us. We are a lean operation bringing you the best shopping experience possible. We are working on your orders as quickly as we can. We thank you for your patience.
If a product is ordered and not wanted, the UNUSED item can be returned for a 25% restocking fee unless otherwise specified. In some cases, we may offer the ability to return the item to us for a lesser restocking fee and then keep the balance as a store credit. To return an item, it must be in brand new condition with original packaging.
We cannot accept a return on special ordered or custom items.
Shipping is non refundable in either direction unless approved by AutoTalent. All items wanting to be return MUST be reported within 30 days of the original invoice date. No items will be returnable after 30 days. All products shipped from the AutoTalent facility are shipped via FedEx, USPS, or USPS. Some packages shipped from the manufacturer may or may not require signatures for package release.
Special Order Items
Some items may be special order specifically for the customer’s vehicle. These items generally require a deposit or paid in full. Once this deposit amount is notified to the customer and they agree to order the special order item, the deposit becomes non-refundable. These special order items cannot be returned or resold. Cancellations are not allowed on special order parts.
AutoTalent DOES NOT REFUND SHIPPING CHARGES. If you modify, install, or alter the item in any form, we cannot accept it as a return. We will not cover any expenses related to the product or installation, and you may be required to purchase a replacement.
** All cancellations that are requested that are NOT due to items not being in stock or delayed by the manufacturer are subject to a 5% processing fee. When you place an order with us we pay credit card fees that are NOT returned back to us. We will absorb these fees if we do not have the item in stock OR if you agree to the original ETA and that ETA is NOT met. If you decide to cancel for any other reason you will not receive this 5% fee back
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based.