Great company to work with Ordered a couple Charge pipes due to Ford being on national back order and Sinister Diesel was able to help out with having theirs available. Great quality products, friendly service and quick responses.

Easy to find the part Easy to find the part, really should not have went out in the first place. But glad they had it. It was the on an off valve for the water filter. Was leaking. Poor construction is all I can think, plastic ball valve. Got 3 years out the older one. The price you pay for this stuff should be made unbeatable.

My experience with sinesterdiesel was a… My experience with sinesterdiesel was a positive experience highlighting their attentiveness, quick delivery, and helpful service.Only issue/problem I had was with the clap that came with my cold charge pipe. It doesn’t stay around to lock.

customer service/ parts Not the greatest customer service. Had to call twice for order issues. First time I called they were rude second time I called was better. Parts I ordered had no real change in performance. More for just color and look under the hood.

Tuner purchase never came Tuner purchase never came I purchased a tuner early during the week with express shipping , customer service didn’t help at all . Canceled purchase