Sinister Diesel is your one stop shop for Ford F-250 & F-350, Chevy Silverado, GMC Sierra, and Dodge Ram diesel performance parts. Sinister Diesel is also the number one source for Diesel aftermarket components, exhaust systems and diesel tuners, for Ford Super Duty Powerstroke, Dodge Ram Cummins, GMC Sierra 2500HD/3500HD Duramax and Chevy Silverado 2500HD/3500HD Duramax engine repair parts, upgraded EGR coolers, lighting, bumpers, grilles and suspension components from our parent company Sinister MFG & Sinister Diesel®. We offer the biggest names in the industry to help you repair or modify your Powerstroke, Cummins, or Duramax diesel engine.
15,194 Verified Customer Reviews
15,194 Customer Ratings and Reviews
Shopper Approved collects trusted reviews from customers who have made a verified purchase.
4.8
Overall Star
Rating
5-star reviews
About this Company
Sinister Diesel is your one stop shop for Ford F-250 & F-350, Chevy Silverado, GMC Sierra, and Dodge Ram diesel performance parts. Sinister Diesel is also the number one source for Diesel aftermarket components, exhaust systems and diesel tuners, for Ford Super Duty Powerstroke, Dodge Ram Cummins, GMC Sierra 2500HD/3500HD Duramax and Chevy Silverado 2500HD/3500HD Duramax engine repair parts, upgraded EGR coolers, lighting, bumpers, grilles and suspension components from our parent company Sinister MFG & Sinister Diesel®. We offer the biggest names in the industry to help you repair or modify your Powerstroke, Cummins, or Duramax diesel engine.
7 hours ago , NC
There is no phone number to contact customer service on my issue.
7 hours ago
Mount and install was as stated on website with no issues on the install. However, I can see bracket breaking in time. It vibrates bad and shakes for a brief second at a certain rpm or just as truck comes to stop. Wish I should have save the money and done a frame mount or other remote location. It allows to upload of picture, but vibration can’t be seen in a picture. No customer service number to contact for issue. Not a fan of that either.
8 hours ago , CA
The best in the west
Company Choice
I love sinister sponser me I’m broke 21 year old with a 6.0 help a brotha out !
8 hours ago , NC
Easy site and all questions answered fast through text.
Company Choice
Had what I want.
Today , FL
arrived quickly
Company Choice
used them before
1 day ago , TX
Never got a email back.
1 day ago
Everything was great. Was missing all the fittings for the oil bypass. Reached out and never heard anything back.
1 day ago , IN
good
Company Choice
Good reviews and price point.
1 day ago , TN
Best price on this tuner
Company Choice
Prices and availability
1 day ago , WA
Easy website, great parts!!
1 day ago , AL
Thanks
Company Choice
great reviews
2 days ago , WA
Quick and easy....
Company Choice
Recommended by friend.
2 days ago , MA
Very easy
Company Choice
They are the best
2 days ago , IA
Good
Company Choice
Quality, and brand appeal
2 days ago , MO
service and parts are amazing.
2 days ago , FL
Quick and easy
Company Choice
Ordered other parts, seem to be good quality
2 days ago , IA
Easy and helpful
Company Choice
Bought a cold air intake and pipe kit from y’all
2 days ago , TX
All good
Company Choice
Brand has good reputation
2 days ago , WV
Order received on time and undamaged, unfortunately the parts didn't fit my truck. I notified customer service and returned the parts with no problems.
Company Choice
Better price and hub-centric design
3 days ago , TX
Was quick and easy everything was easy to understand
Company Choice
Recommended by many people that I know a great company to work with quality products
3 days ago , PA
Easy to order
Company Choice
2yrwaranty made in usa
3 days ago , TX
Great experience and sales reps are always willing to help.
Company Choice
My favorite color is blue and simple love the product line offered.
3 days ago
Great product and that’s why it’s going on my F250…
Why Trust Verified Reviews?
Verified Reviews are real, authentic reviews collected from actual paying customers, using Shopper Approved's Verified Review Platform. When reviews are Verified by Shopper Approved, you know that you can trust them to make better buying decisions.
Unverified Reviews on the other hand, are reviews collected by Open Review platforms that allow anyone to leave a review, without any validation or proof of purchase. Unfortunately, most reviews you read online are Unverified Reviews, and can't be trusted.
As a consumer, here's how you can tell the difference:
Verified Reviews from Verified Review Platforms like Shopper Approved, have much higher review counts and higher overall Star ratings, because they attempt to collect reviews from every single paying customer.
Unverified Reviews from Open Review Platforms, tend to have much lower review counts and more negative Star ratings, because people with bad experiences are primarily those who leave reviews. This often creates a misleading, inaccurate portrayal of a companies true reputation.
So, when searching for Verified Reviews, look for the name you know you can trust. Shopper Approved.
Are you a Business?
See What Shopper Approved
Can Do For You