Exhaust
Good product and quick shipping
By David Gavin J.
Saturday, November 7, 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.
724 approved reviews, newest moderated first
Good product and quick shipping
By David Gavin J.
Having no previous experience with Diesel Ops prior to my purchase (only seeing their items on eBay), I was pleasantly surprised at the courtesy that was extended to me over the phone and the efficiency of placing my order with Diesel Ops by phone. Not only did they ship the exhaust system I ordered for free, they honored a previously posted price that was less than the price advertised. Shipping was spot on - the package was on my doorstep 3 days after placing the order. I will be definitely using this company again and I won't hesitate to recommend them in the future. This is how a retail experience should be - no hassles, no glitches. Just damned good service.
By Morgan M.
Anything good. But one thing missed gasket circle
By Brandon E.
Response from Diesel Ops· Jan 21, 2016
Customer contacted us today 1/21/2016 via phone call at 4:00PM to let us know a single gasket was not in the package from Magnaflow. We are working with the customer to get him the missing gasket.
I orderd floor mats and they came right away as they where in the pitchers, great services!
By Trevor
Part was exactly as described, shipped fast, and was a good overall experience. Would buy from again, no problem.
By Stephen M.
Great sound. Easy intallation Really good deal. Fast shipping
By dakotah V.
Not much for giving reviews but it was good.
By Mrtrt15
Quick transaction with great communication
By Drew S.