01-05 Duramax LB7 & LLY CSF IntercoolerThe CSF 6007 OEM+ Replacement Intercooler is manufactured from the highest quality components to provide you with the best aftermarket OE replacement intercooler available for your 2001 2005 GM 6. 6L Duramax LB7 LLY. CSF is an ISO certified cooling system manufacturer with many OEM customers around the world. CSF is also known as an industry leader in automotive cooling for both OE and the performance aftermarket. Each CSF OEM+ Intercooler is built

** $300 core fee is required** refundable when old charger is returned

This Kit also acts as a heater grid delete giving your 6

That being said: there is some room for improvement at the collector area of the manifold

high-grade metal and featuring a 4

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Level 1: 30 HP - 60 Lb-ft TQ

LB7 and LLY engines will require tuner programming

T4 Exhaust Housing

Meaning with efi live or mm3 tuning you will need to have your tuner re-scale the MAF sensor for the 5" tube so that the truck fuels the way it should with the bigger intake

Easily installs by plugging into existing factory ports

7L Power Stroke CP4 Bypass Kit features all quick connect lines that will eliminate the need for cutting the factory supply line

or stripped stock exhaust manifold fasteners with high quality ARP bolts