Power Stroke Products Performance Valve Spring Set 01-16 6.6L GM Duramax ALI-AP63406 but it's a small price

but it's a small price to pay to provide the best product and peace of mind that you'll be a Carli customer for life

you know how difficult it can be to get a recovery file from the manufacturer to restore your programmer

because it must be programmed into the AutoCal

no problem

Power Stroke Products Performance Valve Spring Set 01-16 6.6L GM Duramax ALI-AP63406 but it's a small priceThis spring set from Power Stroke Products allows you to run higher boost pressures and RPM's without experiencing valve float. These are a direct drop in, no extra cylinder head machining is required to run these springs. Depending on installed height, you will have approximately 130# installed pressure. If you have an aftermarket turbo and are running more RPM than factory, you will see a few problems if you are still using OEM springs. First, valve