Unfortunately UPS lost my package but their help center saved the day. I spoke with Katy over the phone at there help center and within a matter of 2 days she was able to get my order rectified and re... Toon meer
Bedrijf heeft geantwoord
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Received the Sinister on engine billet fuel filter. Installation was a breeze. Feel a Lot more confident that I have avoided a major issue with this installation. Have a few more items I plan to purc... Toon meer
Bedrijf heeft geantwoord
I ordered the oil cooler and coolant filtration system because my deltas were off. This fixed my issues and I am now running with in range. Everything arrived complete and I had no issues getting it i... Toon meer
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Parts ordered were packed well i protective packaging and shipped quickly. Received everything in approximately 4 days in very good condition, all parts fit exactly and were very easy to install. De... Toon meer
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Bedrijfsgegevens
Informatie afkomstig van verschillende externe bronnen
Sinister Diesel is your one stop shop for Ford, Chevy, GMC, and Dodge diesel performance parts. Sinister Diesel is also the number one source for Diesel Racing Components, Exhaust Systems, Tuners, Ford Powerstroke, Dodge Cummins, and GM 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.
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- sinisterdiesel.com
4,6
Uitstekend
4K reviews
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Heeft 66% van zijn negatieve reviews beantwoord
Reageert doorgaans binnen 1 week
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Great Products and Customer Service
Great Products and Customer Service, easy Online Shopping and Timely Confirmation and Delivery.
10 november 2025
Review zonder uitnodiging
Antwoord van Sinister Diesel
Thanks for taking a moment to share your experience. It’s great to hear that everything—from the products to the online checkout to the delivery updates—hit the mark for you. We put a lot of effort into making things smooth and reliable, so feedback like this really matters.
We appreciate you choosing Sinister Diesel, and we're here whenever you need us again.
2014 Cummins 6.7 heater core plugged up.
The quality and detail of the coolant filter kit was excellent. I would recommend this kit to address debris removal that clogs the heater core causing no heat on the drivers side. Flushing the system with a quality cleaner and coolant replacement at the time of the filter kit install speeds up the coolant clean up and corrected my poor or no heat issue.
15 november 2025
Review zonder uitnodiging
Antwoord van Sinister Diesel
Thank you for taking the time to share your experience with our coolant filter kit. We truly appreciate you leaving a review and helping other customers understand the benefits.
At Sinister Diesel, we pride ourselves on delivering 5-star products and customer experiences, so it’s great to hear that the quality, fitment, and results met your expectations. Your detailed feedback about pairing the kit with a proper flush and coolant replacement is extremely valuable and will definitely help others facing the same heater core issues.
We’re glad the kit helped restore your heating performance, and we appreciate your recommendation. If you ever need anything else, our team is always here to help.
Never told me my order was on backorder
The website never told me that the part was on backorder, nor did I receive any email stating that. It took two weeks before I reached out, wondering where my part was, and that is when I found out it was on backorder. Finally, I received an email a week later saying that the order would be delayed another week. I would have liked to know that my order was on backorder to begin with.
26 oktober 2025
Review zonder uitnodiging
Antwoord van Sinister Diesel
Thank you for taking the time to share your experience with us. At Sinister Diesel, we pride ourselves on delivering a 5-star customer experience, and we truly appreciate you bringing this to our attention.
I’m sorry that the backorder notification didn’t reach you and that the website didn’t clearly communicate the delay at the time of purchase. That’s not the level of clarity or service we aim to provide. We understand how frustrating it is to wait on a part without being informed up front.
Thank you again for your patience and for giving us the opportunity to improve.
Positive Experience on customer service…
Quick reply on customer service request. Real people that you can understand and understand you on the other end of the phone. The item I purchased worked well for my application. As a 1st purchase it was a positive experience.
18 november 2025
Review zonder uitnodiging
Antwoord van Sinister Diesel
Thank you for taking the time to leave this review. We’re committed to delivering a true 5-star customer experience at Sinister Diesel, and it’s great to hear that our team was able to help quickly and clearly.
We’re glad the product worked well for your application and that your first purchase with us was a positive one. We truly appreciate your feedback and your trust in our company.
If you ever need anything in the future, we’re here and happy to help.
I didn't like paying extra for 3 day…
I didn't like paying extra for 3 day shipping and it taking over a week to be delivered
17 november 2025
Review zonder uitnodiging
Antwoord van Sinister Diesel
Hi Eric! I sent this on to our customer service dept to see what happened here, but we were unable to find an order with your name. Was it perhaps ordered under a different name?
GREAT PRODUCT AND SPEEDY DELIVERY TIME
4 november 2025
Review zonder uitnodiging
Antwoord van Sinister Diesel
Thanks for the review! Glad the product and delivery hit the mark. We aim for 5-star service every time, so we appreciate you letting us know we delivered.
Great replacement for the factory power…
Great replacement for the factory power stroke sticker
9 oktober 2025
Review zonder uitnodiging
Antwoord van Sinister Diesel
Thanks for the review! Glad to hear the replacement worked out for your Power Stroke. Appreciate you choosing Sinister!
Shipping
The tracking on where the part was in the whole process was great.
26 september 2025
Review zonder uitnodiging
Antwoord van Sinister Diesel
Thank you for taking the time to share your feedback. We pride ourselves on delivering a 5-star customer experience, and we’re glad to hear that the order tracking process worked well for you.
We appreciate your review and are always here if you need anything in the future.
Antwoord van Sinister Diesel
Thank you for taking a moment to leave a review. We’re committed to a 5-star experience at Sinister Diesel, and we’re glad to hear the product and installation met your expectations.
We appreciate your support and are here if you ever need anything.
Carter Review
Over all look of the intake, ease of installation and quality of product!
4 oktober 2025
Review zonder uitnodiging
Antwoord van Sinister Diesel
Thank you for taking the time to leave a review. We pride ourselves on delivering a 5-star customer experience, and it’s great to hear that the look, quality, and ease of installation of your intake stood out.
We appreciate your support and are always here if you need anything else.
Always great products from Sinister…
Always great products from Sinister Diesel!!
2 oktober 2025
Review zonder uitnodiging
Antwoord van Sinister Diesel
Thank you for the kind words and for taking the time to leave a review. At Sinister Diesel, we work hard to deliver a consistent 5-star experience, and it means a lot to hear that our products continue to meet your expectations.
We appreciate your loyalty and are always here if you need anything.
above and beyond
This company went above and beyond to ensure that the auto part arrived. Excellent customer service—they even dealt with the UPS snags.
10 september 2025
Review zonder uitnodiging
Antwoord van Sinister Diesel
Thank you for taking the time to share your experience. At Sinister Diesel, we’re committed to delivering a true 5-star customer experience, and we’re glad to hear our team was able to step in and make sure your order arrived—UPS challenges and all.
We appreciate your trust and your feedback. If you ever need anything in the future, we’re always here to help.
Muffler delete pipe is too long
Exhaust pipe is too long. Is not a direct replacement. Have to cut 3” off existing exhaust in order to fit. Good quality material.
1 september 2025
Review zonder uitnodiging
Antwoord van Sinister Diesel
Thanks for your feedback! We’re glad to hear you’re happy with the quality of the material. Because some of our exhaust parts are designed as universal fit, the length can vary slightly and may require trimming during installation. Fitment can also differ depending on model year and configuration. If you’d like, our team can help double-check fitment for your specific truck and walk you through the install. Please feel free to reach out through our Help Center so we can make sure everything is dialed in for you.
Order shipped promptly and part showed…
Order shipped promptly and part showed up packaged well. Product was exactly as described.
14 augustus 2025
Review zonder uitnodiging
Part not stocked when it said it was….
Part was listed as being in stock when I ordered it. Then received an email that it was on back order and had to wait over 2 weeks.
4 augustus 2025
Review zonder uitnodiging
Easy to order and came quick
Easy to order and came quick. Said it was a 3 hour install and it only took an hour. Great quality stuff and it look badass.
4 augustus 2025
Review zonder uitnodiging
I received fast delivery with in 72…
I received fast delivery with in 72 hours and complete order with easy to follow installation instructions for the cold air intake replacement duct for a 2020 Ford F-250 6.7 Power Stroke. Excellent product!
18 juli 2025
Review zonder uitnodiging
Blue Spring for the win!
Install was easy and the product gave instant results. Throttle response is better and my truck runs smoother. Who knew a little spring would change so much.
17 juli 2025
Review zonder uitnodiging
Sent the wrong part initially but…
Sent the wrong part initially but quickly fixed the situation. The dude on the phone was polite too.
15 juli 2025
Review zonder uitnodiging
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