Great service The part was direct fit and easier to bolt on than factory style. No issues with shipping. Happy to do business with you every time so far.

EGR DELETE 6.7 POWERSTROKE Bought the EGR delete for my F350. Super reasonably priced with very quick shipping. Very high quality and everything in the kit fit perfectly. Will definitely be buying more goodies from Sinister.

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

Quality products Online- spot on Order arrived in timely manner

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