04-05 Duramax LLY Custom 5" RPI Intake Stage 2

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  • Regular price $339.99

This is our full metal 5" Cold Air Intake system for 04.5-05 LLY Duramax, this is the biggest system on the market! 

☆☆ Only fits with LBZ Mouthpiece or HSP or WC Fab Mouthpieces ☆☆

Click here to view available powder coating colors.

☆☆This system will give check engine light on LLY unless you rescale your MAF Sensor to LBZ scale. EFI Live Required!☆☆

This system uses a huge 5 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.

We use only the best filters on all our intake systems

These are Custom built to order,  so it takes 10-20 days to ship out, depending on how many orders we have that week.



Ask a Question
  • I saw that there are 4 options for filters. Which one is the best for flow? Which is the best for filtration? Which one do you recommend to people? Thanks.

    Well the amsoil is the best seller, but green filter is really good also for flow and filtration. If it were my truck, I would use any of the 3 filters: Amsoil, aFe Pro Dry S, Green Filter

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