I installed your 4 inch exhaust, k&n air filter, and new vacuum pump on my 2000 GMC 3500 duelly crew cab. It immediatly lowered the engine temp, and it's the first time I really ever heard the turbo. I did the install, quite simple and straightforward. I... ...read more From: dave m.
Walt and company did an excellent job. I order several products and all arrived in a timely matter. Especially the PMD. Truck quite running on a Wednesday and low and behold Wednesday afternoon my products arrived. Installed the PMD cooler in less than... ...read more From: Randy B.