Installed in 20 minutes and immediately smoothed out the idle. Don't know what other benefits there are but I was really annoyed by the choppy oil before and now it idle smoother than any other 7.3 I've had before.

Haven’t had the time to install it yet, but once I paid for it, it was labeled shipped within the hour. Clay is always helpful. Excellent service and fast shipping.

Haven't had a chance to install yet but appears to be well made.

Bought my 99' F350 from the original owner with 285k miles on the clock. In the last few years the previous owner did all the big repairs such as injectors and HPOP just to name a couple. I'm looking to make this old girl last as long as possible with "reliability upgrades" and maybe gain a little performance. This checks one of a long list of boxes. Great product!

7.3 power stroke with 434K miles it made a lot of difference. well worth the effort and money. Very easy install

I would highly recommend this product. Easy to install. I noticed a significant noise reduction from injectors on startup and at highway speed. Also noticed an increase in throttle response. Highly recommend this product. 1999 to 2003 7.3 powerstroke

Fast shipping, packaged so no damage, and relatively easy install. Made a big difference at an idle and truck seems more responsive. Highly recommend.

Easy install and a overall great product.

Good price , fast shipping. I will continue to deal with Riff Raff diesel.