I purchased the SINISTER 7.3 Intake Elbow W/ Boots Kit. The only thing that I didn't like but I knew about before I ordered. Was that the kit doesn't come with the boots pictured. It comes with the up... See more
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Review summary
Created with AI, based on recent reviews
What people talk about most
Reviews shaping this summary
Always a fast and easy shopping experience. I've bought several Ford 6.0 trucks this year to fix up and use building each one with the bypass oil & coolant filter setups as well as the fuel regulated... See more
Company replied
Quick shipping no BS. I grabbed a "blemished" intake & saved some bucks. Honestly it didn't look bad whatsoever & I was glad I could save some money. I installed it with my kid on Christmas and holy... See more
Company replied
Always an easy process to find and purchase my desired products. Literally have everything made by sinister on my 6.0 and 6.7 Powerstroke diesels. Great quality on every product, with absolutely no is... See more
Company replied
Company details
Information provided by various external sources
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.
Contact info
United States
- sinisterdiesel.com
4.6
Excellent
4K reviews
Replied to 66% of negative reviews
Typically replies within 48 hours
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Reply from Sinister Diesel
Thank you for the review. Glad the ordering process and shipping were smooth. We appreciate you choosing Sinister Diesel.
Great customer service
8 April 2026
Unprompted review
Reply from Sinister Diesel
We appreciate the review. Glad our team took good care of you. Thank you for choosing Sinister Diesel.
Reply from Sinister Diesel
Appreciate the feedback. Glad you’re happy with it. Thanks for choosing Sinister Diesel!
Customer Service is top notch and so…
Customer Service is top notch and so are the products you sell. I appreciate that when a person has a question, problem or needs guidance you answer the call and take care of it. This is what good companies do.
16 April 2026
Unprompted review
Reply from Sinister Diesel
Thank you, that means a lot. Taking care of customers and being available when it matters is something we take seriously. We appreciate your support and your business.
Reply from Sinister Diesel
Glad to hear it fit just right. We appreciate you choosing Sinister Diesel.
Products came with a quickness
Products came with a quickness, packaging was legit! I’m super happy with the package I purchased and would recommend taking a second look if your in the thinking stage!!
1 April 2026
Unprompted review
Reply from Sinister Diesel
Appreciate you taking the time to share that. Glad everything showed up quickly and arrived the way it should. Great to hear you’re happy with it, thanks for the recommendation and for choosing Sinister Diesel.
Coolant filter for my 6.7…
I bought the coolant filter for my 6.7 Cummins. The product is great and quick tip, I bought the WIX 24071MP filter to replace the 24070 filter that comes with the kit to allow more room to get a wrench under the filter. I did end up getting leaks in the shut-off vavle connections when trying to have them perfectly straight up. I called customer service and an american actually return called me within a couple hours. I was shocked. Great product, great service. I did pay for expedited shiping as they are on the west coast and I am on the east but it took them a couple days to fullfill the order before it went to shipping and then it still took 3 more days to arrive. I would not pay the expedited shipping again. All else is great so I still give a 5-start review.
1 April 2026
Unprompted review
Reply from Sinister Diesel
Thank you for taking the time to share this, we appreciate the detailed feedback. Glad to hear the kit is performing well and that our team was able to get back to you quickly when you called in.
We also appreciate you pointing out the fitment and install notes, along with the feedback on expedited shipping. That kind of input helps us continue to improve both the product experience and our processes.
Thanks again for your business and the 5-star review and if you need anything down the road, we’re here to help.
Very fast shipping and great product…
Very fast shipping and great product and presentation, I’m very happy overall with my experience with the sinister diesel team!
4 April 2026
Unprompted review
Reply from Sinister Diesel
Thank you for the review, we really appreciate your business. Glad to hear you had a great experience. If there’s anything you need down the road, don’t hesitate to reach out.
Quick response and shipping.Excellent…
Quick response and shipping.Excellent service.
25 February 2026
Unprompted review
Reply from Sinister Diesel
Appreciate the review! Glad our team was quick to respond and get your order out fast. We’re here anytime you need us.
Order went smooth and easy.
Order went smooth and easy.
Great instructions and easy installation.
13 March 2026
Unprompted review
Reply from Sinister Diesel
Glad to hear everything went smoothly from start to finish. We put a lot of focus on clear instructions and straightforward installs, so it’s great to know that made a difference. Thanks for choosing Sinister Diesel!
Customer support was very helpful
Customer support was very helpful. Shipping was fast and install of bypass oil filter set up was very straightforward and easy
3 March 2026
Unprompted review
Reply from Sinister Diesel
Thank you for sharing that! We’re glad our team was able to help and that everything, from shipping to install, went smoothly. That kind of straightforward experience is exactly what we aim for. We appreciate you choosing Sinister Diesel and are here if you need anything down the road.
Reply from Sinister Diesel
Love to hear it, thank you! Glad everything showed up quickly and went on without a hassle. We appreciate you choosing Sinister Diesel and are here when you’re ready for the next upgrade.
Great products and good prices
7 March 2026
Unprompted review
Reply from Sinister Diesel
Thank you for the feedback! We’re glad to hear the products and pricing both hit the mark. We appreciate you choosing Sinister Diesel and look forward to helping you again.
Outstanding Experience with Sinister Diesel!!!
I recently purchased several products from Sinister Diesel, and I couldn’t be happier with the results. From start to finish, the entire experience was nothing short of excellent.
The quality of their parts is truly impressive — you can tell immediately that Sinister Diesel puts real craftsmanship and durability into everything they make. Installation was smooth, everything fit perfectly, and the performance improvement was noticeable right away. My truck runs stronger, cleaner, and more efficiently than ever.
Their customer service team was equally outstanding. They were knowledgeable, helpful, and made sure I had exactly what I needed for my setup. Shipping was fast, packaging was secure, and everything arrived in perfect condition.
It’s rare these days to find a company that delivers both top‑tier products and top‑tier service, but Sinister Diesel absolutely does. I’ll definitely be coming back for future upgrades, and I highly recommend them to anyone looking to improve their diesel performance.
Great products. Great people. Great results. Five stars all the way.
16 March 2026
Unprompted review
Reply from Sinister Diesel
Thank you for the incredible review, it truly means a lot to our entire team. Our goal is always to deliver parts that people can rely on and an experience that makes working on your truck enjoyable from start to finish.
Hearing that everything came together the way it should is exactly what we work toward every day. We appreciate the trust you placed in Sinister Diesel and are excited to be part of your build as it continues.
Reply from Sinister Diesel
Hey AJ, we are sorry to hear about the shipping. We are unable to find you in our system with just initials. If you could reach out, we'd like to see how we could make up for that. We work hard to provide every customer with a 5-star experience. Thank you for choosing Sinister Diesel!
Looks solid
Looks solid. Wont get around to installing it until I tackle the heater core in a few months.
20 February 2026
Unprompted review
Reply from Sinister Diesel
Appreciate the review! Glad it made a strong first impression out of the box. Let us know if any questions come up when you get to installing it.
Alsome 💪💪💪💪💪💪💪💪💪💪
19 January 2026
Unprompted review
Reply from Sinister Diesel
We’ll take that as a win! 💪😄
Thanks for the energy and the support, it means a lot. We’re glad you’re happy with everything and appreciate you choosing Sinister Diesel.
Service call from hell
Ordered part, then hit call telling me that the part was back ordered, 6-8 weeks for delivery. The woman that called was insulting and told me that it was my fault for misreading the order page. She must've been standing on her desk yelling. It was loud. Told her goodbye, no more sinister diesel.... BYE
7 January 2026
Unprompted review
Reply from Sinister Diesel
Hey Brian, We are sorry to hear this. The part you ordered is a 5-7 day lead time, which is stated on the website... but definitely not a 6-8 week delivery time. We left a message for you to get to the bottom of this, so please call us if you'd like to chat about this. We work hard to provide every customer a positive experience, so would like to see where this went wrong.
Reply from Sinister Diesel
We appreciate the feedback! Glad everything showed up quickly and that the product delivered like it should. Thanks for choosing Sinister Diesel! We’re here whenever you’re ready for the next one.
Quality items
Have received the order but have not had the time to install it yet. I am very happy with the quality and craftsmanship of the items, and the blue powder coating is the exact color i am looking for to accent my truck
2 February 2026
Unprompted review
Reply from Sinister Diesel
Thanks for the review! We’re glad to hear the quality and craftsmanship stood out right away, and it’s great to know the blue is exactly the look you were going for. We appreciate you choosing Sinister Diesel and hope the install goes smoothly when you get the chance. (And if there is anything we missed to get that extra star, let us know! We aim for a 5-star customer experience every time)
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