Borla and MBRP both make cat-back exhaust systems for trucks, SUVs and cars. They overlap a lot, so the choice often comes down to sound, material and budget. This guide shows how to compare them for your vehicle.
The short answer
| Borla | MBRP | |
|---|---|---|
| Material | Stainless steel systems | Aluminized and stainless options |
| Sound options | Several levels from mild to aggressive | Several levels, often with tip and muffler choices |
| Price range | Usually higher | Wide range, including lower-cost lines |
| Best for | Owners who want a premium stainless system | Owners who want choice of material and budget |
Material and durability
Stainless steel resists rust better than aluminized steel, and that matters in wet or salted climates. Borla is known for stainless steel systems. MBRP offers several grades: aluminized steel lines cost less, and stainless lines last longer. If you keep a vehicle for a long time or drive in the snow belt, stainless is usually worth the extra cost.
Sound
Sound is personal, and it depends on the vehicle, the engine and the muffler design. Most makers describe their systems on a scale from mild to aggressive, and some mufflers drone at highway speed. Read the sound description and owner videos for your exact vehicle before you buy, and think about whether you will mind the sound on long trips.
Performance
A cat-back system replaces the exhaust behind the catalytic converter. It usually changes sound more than power, and gains are generally modest unless it is paired with other upgrades such as an intake and tune. Diesel trucks with a larger-diameter exhaust can benefit more, which is why systems like the MBRP for the 7.3L Powerstroke are popular. See our comparison of MBRP vs Flowmaster for the Ford F250 7.3L.
How to choose
- Fit first. Choose the system listed for your year, engine, cab and bed length.
- Pick the material. Stainless for longevity; aluminized for the lowest cost.
- Choose the sound level you will enjoy every day.
- Check local rules. Noise limits and emissions rules differ by state.
Common questions
Which is louder, Borla or MBRP?
It depends on the exact system. Both offer mild and aggressive options. Compare the sound rating of the specific kit for your vehicle.
Will a cat-back exhaust void my warranty?
An aftermarket exhaust cannot automatically void a warranty, but a manufacturer may deny a claim related to the part. Check your warranty terms.
Is a cat-back exhaust legal?
Cat-back systems leave the catalytic converter in place, so they are generally easier to keep legal than systems that remove emissions parts. Noise rules still apply in many places.
Where to buy
Shop Borla exhaust systems, MBRP exhaust systems and the full exhaust systems range. We are an authorized dealer for every brand we sell, shipping is free anywhere in the USA, and returns are accepted within 60 days (unused, in the original packaging) and return shipping is free. Not sure what fits your vehicle? Contact our support team and we will help you check before you order.