Excellent fit and excellent folks.
Super people to deal with. The unit fits perfect. Easy to understand directions and unbeatable pricing. Absolutely will conduct more business with these folks in the future ... KUDOS !!!! 5 STARS
By Russell D.
Monday, November 9, 2026 · Customer reviews of US businesses
The Fair Hearing score
Excellent
724 reviews
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Honesty, pricing, process and quality scores appear once 5 customers have rated them.
Shop Aftermarket Diesel Parts for your Cummins, Powerstroke, Duramax, or any Diesel Vehicle. We specialize in quality products with better customer service!
Diesel Ops (dieselops.com) has 724 customer reviews on The Fair Hearing, with an average rating of 4.7 out of 5.
Showing 615 reviews with 5 stars · Clear filters
Super people to deal with. The unit fits perfect. Easy to understand directions and unbeatable pricing. Absolutely will conduct more business with these folks in the future ... KUDOS !!!! 5 STARS
By Russell D.
The best and the loudest straight pipes I've ever heard
By rolando P.
Couldn't find a better price on a full exhaust and once purchased it was on my doorstep in no time at all!
By Brad Vander K.
Awsome product, beautiful finish. Top shelf ordering, shipping. Thank you, dieselops. Fv, ohio
By fred V.
All i have to say is this MBRP 4 inch is awesome look great came with all the needed hardware and was package nice....the best part of all is the part showed up 4 days early which made my day. It was my birthday gift that showed up right before we left for a trip, so i installed and went on the trip a happy man....thanks Diesel Ops will be purchasing alot more from u.
By Cole B.
Great deal Great seller shipped quick
By david D.
Excellent experience! My parts arrived fast and were correct!
By Jeremy
Diesel ops made it quick and easy to get my exhaust. Offered me free shipping and was here in a day and a half. Can't beat it.
By K R.