Joel has done an excellent job with tuning the LBT cam and 50Lb injrctors on my gen 4 L76. I have struggled with 2 other "tuners" that couldn't get it right. But now I'm running down the road and getting ready to play in the mud. Will definitely go back to him with my other 2 trucks.

I have had a great experience with Joel tunning my truck. And the process is simple and easy on my end. Truck runs great after new cam install.

Just got the turbo, looks like a quality piece. Jimmy was super helpful answering my questions. Great to work with.

Happy so far with it showing up so fast . Unfortunately I been working out of town and have t had the time to install it . Thank you for doing what you do ..

Great tolol

good set of springs

Loved the packaging and quick delivery very helpful customer service as well

Cam sounds awesome.

I bought these to handle around 1K horsepower in my Gen 4 6.0 stroked to 404 cubic Inches. Richard Holdener's company has gone above and beyond with there customer service. You can't get a better company that knows their stuff, and sells top quality parts.

Fast shipping, great parts, great price! Thanks RHP!

Packaged very well. Quality piece. The goal with this turbo for me was more response without giving up power potential, from the 76/75 BMF on3 turbo I had, as the G40 is a much newer design. I'd say I achieved that. The G40 is a lot more responsive/fun on my 3v and makes all the right noises! Haven't been to the dyno yet as I road tune it myself, but the goal is 800-850whp on E, 550-600 on 91. I think this turbo will easily achieve that based on what I'm seeing so far.

Quick shipping and product was as described.

I am very happy with my G42-1200. I got this to replace my s475 1.15 ar T6 on my 2004 Aviator DOHC 4.6 w/ aftermarket connecting rods, ring gap and ported heads on E85 in my 88' foxbody with a powerglide. Haven't been to the track yet but it will not hook with more than 6.5 lbs. of boost in high gear on the street ( 0 traction in 1st gear at <50% throttle) with 315/60/15's Hoosier D/R. Can't wait to see what it does with traction!!

Had to switch from the open 1.01 t4 to a divided 1.15 t4 turbine housing to help with spooling because my exhaust system was completely divided all the way up to the turbo. Went from 4200 rpm to make 101 kpa down to 3600 rpm.

Now only if Richard Holdner Performance sold budget 4.6 4V cams 😂

I bought a set of lifters and trays and had a issue with them with In ten mins someone called me from their personal number to help me on their day off and told me a way that could fix it and if it don’t, they will have me a new one coming my way soon

100% exactly what I needed. Great lifters and trays and they got to my door in 3 days! Highly recommend RHP!