6.6 Duramax Gt3788va 67mm billet compressor wheel upgrade 800hp

67mm compressor wheel and housing upgrade for

LBZ applications:

• Chevrolet Silverado HD, Chevrolet Kodiak, GMC Sierra HD, GMC TopKick

LLY applications:

• Chevrolet Silverado HD, Chevrolet Kodiak GMC Sierra HD Chevrolet Express GMC Savana 

includes: 

• 67mm by 94mm billet wheel upgrade
• Compressor plate
• Duramax Compressor housing machined to 67mm compressor wheel 
• Good up to 800hp with quick spool up.