04-05 Duramax LLY RPI 4" Stage 1 Cold Air Intake

This is our full metal 4" Cold Air Intake system for 04.5-05 LLY Duramax

☆☆ Only fits with LBZ Mouthpiece or HSP Mouthpiece ☆☆

**Click here to view available powder coating colors. **

No check engine lights with this system!

This system uses a 4 Inch T6 Aluminum intake tube for ultimate air flow!

You will have faster spool up, lower egt's, Noticeable Horsepower gain, some Mpg gain, and a turbo whistle that will make people look when your going through town!

Has a bolt in heat shield that is vary well sealed to keep underhood temps away from the large Filter, it provides a fresh cold air supply straight to the filter for lower egt's and better performance. It is normal to see 150-250 deg drop in egt's with this system.

Comes with S&B Oiled Filter or AEM Dry Flow Filter

These are Custom built to order,  so it takes 14-21 days to ship out, depending on how many orders we have that week.