MBRP Exhaust FAQs


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What is the difference between T304 Stainless Steel and T409 Stainless Steel?

T304 stainless steel will not oxidize or rust. It can develop a golden color when exposed to high heat over time. T409 stainless steel has a small amount of ferrous material in it and can show surface rust after some time, especially when exposed to road salt. If you are concerned about long-term appearance, you should purchase a system made of T304 stainless steel. If you are more concerned about the price, but want something that is more durable than aluminized steel, then a system made of T409 stainless steel should be a consideration.

What improvements can I expect in performance?

While performance gains vary depending on the vehicle, you can expect a gain of 2% to 10% in horsepower and torque. For example, with a 2005 Chevrolet Silverado with a Duramax diesel engine you will see a gain of 18 HP. and 28 ft/lbs measured at the rear wheels. Most flow improvements fall between 20% to 100%. You can also expect a reduction in exhaust gas temperature (EGT) by approximately 200 degrees Fahrenheit.

Will I be able to keep my spare tire in place if I get a system with duals?

Generally, MBRP designs all of its systems to retain the factory spare tire. Please check instructions on our website prior to ordering.

Do you exhaust kits include all clamps and instructions?

Our kits come complete with all the required hardware as well as clear, easy to read instructions with lots of pictures to help you work your way through your installation.

Where is the closest dealer to my location?

You can find the dealer closest to you with our Dealer Locator.

Will your systems fit to a dually truck?

All of our exhaust systems will fit dual rear wheel (dually) trucks. We do recommend that tips be installed to extend the exhaust and avoid any discoloration of your vehicle.

What size is your exhaust?

For diesel vehicles we offer performance exhaust systems in 4" and 5" diameter pipe. Due to fitment issues some of the diesel systems come with a 3.5" downpipe. Our Performance Gas single systems use 3" to 4" tail pipes while the "Cool Duals" systems use 2.5" tail pipes. The front pipes on the MBRP Sport Truck systems vary from 3" to 3.5" depending on the size of the factory exhaust.

What is your downpipe size for the ford?

There are a few different sizes for downpipes for Ford trucks. For 94-97 trucks the pathway for the downpipe is very restrictive. In fact, the factory downpipe for these trucks are flat, approximately 1.5" in height. Our downpipe is 3" in diameter. For the 99-03 model years with the 7.3L Power Stroke diesel the downpipe is 4" and the 03-06 model years with the 6.0L Power Stroke diesel the downpipe is 3.5".

Will this system fit to my truck bed size?

The majority of our diesel and many of our performance gas systems are designed to fit all bed sizes and cab configurations. If you have any other questions, don't hesitate to call us toll free at (888) 636-7223.

What gauge is the steel that MBRP uses?

All of the pipes are made from 14 and 16 gauge tubing.

Will the dual exhaust fit around my hitch?

All of our diesel exhaust systems will fit with factory installed trailer hitches as well as most aftermarket bolt on hitches. You may run into interference problems if you have a fifth wheel or gooseneck hitch installed. In that case we recommend installing a single system.

Is the mirror polished diesel tip included?

Tips are included in many of our 4" & 5" diesel applications (except the PLM, SLM, and performance series). Tips are included in all of our Gas applications (except the Performance series).

Does MBRP make exhaust systems for the cab & chassis trucks?

We now offer a turbo back system for the 6.0L Ford F350/F450/F550 Cab and Chassis configuration.

Do you make a turbo downpipe for the Duramax?

MBRP offers Duramax 3" downpipes for 2001 up to 2016 Duramax engines coated in a high heat black finish.

Can I leave the catalytic converter in?

Yes, all MBRP exhaust systems are designed to retain the factory catalytic converter.

What are the advantages of a MBRP exhaust compared to the stock?

By installing an MBRP exhaust system you may see an increase in horsepower and torque. Fuel mileage gains may be noticed as well as a decrease in exhaust gas temperatures (EGTs). By lowering EGTs you will increase your turbo longevity.

What style of muffler is used?

The mufflers used on our diesel systems is a straight flow through design with either a spiral louver core or a perforated core. The muffler is packed with stainless steel wool which is then wrapped with a ceramic fiber blanket. This combination creates the deep mellow exhaust note that MBRP Ltd. systems are known for. Our Performance Gas systems use a variety of high flow muffler designs utilizing the same spiral louver core design as our diesel mufflers or tuned chamber designs specific to the application intended.

Why should I buy an MBRP silencer?

MBRP offers the largest selection of bolt on silencers. Improves throttle response, a deeper throatier sound and offers large weight savings over stock. MBRP has the most dependable and reliable silencer with the best warranty in the business.

What is the difference between the race, standard and trail can for snow and dirt?

Trail - Sound is a deeper tone exhaust note, just above stock level.

Standard - A mild throaty sound during idle, but when you open up the throttle a deeper more aggressive sound.

Race - A very aggressive sounding silencer that will turn heads, a great deep sound that is throaty.

What is the difference between the street, standard, and race profiles for car and truck?

Street - Sound is a deeper tone exhaust note, just above stock level

Standard - A mild throaty sound during idle, but when you open up the throttle a deeper more aggressive sound.

Race - A very aggressive sounding silencer that will turn heads, a great deep sound that is throaty.

Do you make a silencer for the 440 or the 550 fans?

MBRP does not make any silencers for the 440 or the 550 fan models.

What are the weight savings?

Weight savings depends on the silencer. For example, the Rev silencer #1160309 shows in the last 2 digits that there are 9lbs in weight savings from the stock silencer.

What is your warranty?

MBRP silencers come with a one year manufacturer's warranty. If you find a deficiency with our silencer, you must return it to the point of purchase with your receipt. The unit will then be sent in to our tech department to inspect to ensure this will be a warranty claim/coverage.

What are the decibel readings on these cans?

As there are many different riding conditions that are available to our users, MBRP Inc does not quote specific db levels. MBRP silencers do produce more decibels than stock, although we alter the sound to a deeper tone. If concerned with the sound level, it is our recommendation to purchase a trail or standard canister.

Do I have to re-jet or re-clutch my machine?

When developing a silencer, we use stock brake specifics meaning that we do not alter your stock jetting or clutching to gain the performance that we do. We have found that riding at extreme elevations and temperatures may warrant a jet or clutch change. It is important to us that you remain as dependable and reliable as stock with our silencer.

What material do you build your cans with?

MBRP uses quality T304 stainless for the shell casing and mandrel bent tubing coated with a rust inhibitor. The internals of the silencer are constructed with both stainless steel wool and a tightly woven cloth material.

How do I become a dealer?

Go to www.mbrp.com. Under the dealer tab on the home page there is an application form. Fill this form out, submit it and that will start the process. Click the dealer application form here to go there directly.

I bought an MBRP can and it is not fitting?

Verify the silencer by retrieving the scribed numbers on the stainless body of the silencer. Contact our customer service department for more information.

What is the difference between the SDI Silencer and the HO?

The SDI (Semi Direct Injection) has a sensor adaptor plug into the silencer. The HO does not have this port hole into the exhaust.

Where is the closest dealer?

Check our online list of current dealers by State or Province. Click here.

How can I tell if I received the right silencer?

Check scrolling on silencer to verify the correct part.

How do these silencers mount to my machine?

The MBRP silencer uses the stock mounts and springs. There is no cutting or welding necessary to fit this to your sled. They are a direct fit and install in minutes.

Is all hardware included for installation?

Yes, you will however be using some stock parts to install. Any additional parts needed for install are supplied with the silencer.

What do I need to file a warranty claim?

1) Complete the online warranty registration form. 2) A copy of your sales receipt/proof of purchase indicating part number and date of purchase is required. 3) Photos of any defective parts may be requested.

Do you warranty for sound?

Because sound is subjective, we do not warranty sound. There are usually several ways to adjust the sound of your exhaust kit. Please call MBRP directly to discuss these options.

What direction do I install the muffler?

When looking at the exhaust from the passenger side, you should be able to read MBRP from left to right on the muffler.

What type of steel is used in the black exhausts?

Aluminized steel is used for the black series exhausts. These exhausts are not recommended for climates with snow and salt.

What tools do I need to install my exhaust?

A torque wrench or impact gun can be used to tighten the clamps. An allen wrench is used to bolt on the tip. Pipe trimming may be required depending on the vehicle application.

How can I listen to a sound clip of the MBRP exhausts?

We have sound clips of most of our exhausts on our YouTube page.

How much torque is needed to install the clamps?

We recommend approximately 40ft-lbs of torque for saddle clamps and approximately 60ft-lbs of torque for band clamps.

What type of warranty coverage is included with the exhausts?

The warranty coverage is specific to the steel grade of the exhaust. The warranty coverage information is listed on our website under product info. WARRANTY.

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Unable to find your answer? Give us a call. 888-636-7223