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.

I received my package on a well manner… I received my package on a well manner time frame an it was well packaged. Looking forward to doing more shopping for diesel parts.

degas bottle not fit for 6.0 degas bottle not fit for 6.0. send back. not full refund -$70 exhaust manifold was stolen. no refund. no replacement. customer service (Marsha Eubank) HORRIBLE. didn`t help any. never had such a bad service. work before with AFE power, Mishimoto and Banks never had a problem like that Should read reviews before..

Great customer service Great customer service. Received part in a timely manner in good conditions. Core return was posted sooner than expected

Good parts good quality I appreciate the quality and quickness of arrival of their parts their welds and craftsman ship. However ups usually does horrible shipment and sometimes leaves knicks and scratches which can be annoying but that’s ups’s fault. All I ask of sinister is more sales products as I feel as some of their items overpriced yet I want to buy 80% of my parts from them I only buy some here and there because they are so expensive compared to oem