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.
Sinister Diesel (sinisterdiesel.com) has a 4.5 out of 5 rating on OK.one, based on 198 user reviews collected here. It is listed under Vehicles & Transportation and its reputation is excellent. 86% of reviews are 4 stars or higher and 6% are 1 star; The business has replied to 44% of negative reviews; Reviews mostly discuss Product, Quality, User experience. Last updated 2026-09-08.
Reviewers overwhelmingly had a great experience with this company. Customers frequently praise the high quality and outstanding performance of the products, noting that everything works exceptionally well and fits their trucks perfectly. People also appreciate the fast shipping times and secure packaging, making the entire purchasing process remarkably smooth and easy. However, some people mentioned frustrating issues with unexpected backorders and prolonged delivery delays. A few consumers also noted that certain replacement parts required unexpected modifications or extra adjustments during installation. Despite these occasional challenges, most buyers remain very satisfied with their overall purchases and intend to order again.
Auto-generated from all reviews of this business. For reference only.Over all look of the intake, ease of installation and quality of product!
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 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.
This company went above and beyond to ensure that the auto part arrived. Excellent customer service—they even dealt with the UPS snags.
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.
Exhaust pipe is too long. Is not a direct replacement. Have to cut 3” off existing exhaust in order to fit. Good quality material.
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 up packaged well. Product was exactly as described.
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.
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!
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.
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.
Sent the wrong part initially but quickly fixed the situation. The dude on the phone was polite too.
Items as described, quick ship
VERY GREAT PRODUCT.
love the product but i just ordered a side charge pipe kit for my 6.0 and its been over a month since i even received an email about it i have no idea where its at and still waiting on a shipping email
Hey Gauge - we apologize on the delay. We had one piece of the kit on back-order and unfortunately that delayed out your order. We do send a back-order email and it is usually followed up with a phone call. We will use your feedback to better our system. It does show that your order went out on 7/25 and should have been delivered. Please reach out to us directly with any issues. Thank you for your business.
Awesome product! Looks and works great!
Had everything in the kit to bullet proof the top of the engine.
Always great dealing with SD! Great service and products.
I was excited to get parts for my new truck . I placed 2 orders at different times only to be notified they were both on back order . The thing I don’t like was that they took my money knowing they didn’t have the product ,I left an email and they did call me back . She said next time call sales because the website doesn’t have a counter. I did find what I wanted through Amazon but it ended up costing me more money !
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 upper & lower intercooler pipe boots. Not the plenum to intake boots & upper intercooler pipe boots that are pictured when purchasing. Othewise it was packed very well came with three stickers & instructions black and white however also you can find the color instructions online. Very easy to install and looks sharp was very pleased with my sinister experience
It’s a good looking product. Haven’t installed yet. Manual is well written
Communication was great and product was easy to install
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