These are our billet wheel version of our ko4 025/26. These turbos utilize a slightly bigger / taller compressor wheel and are rated for 28 psi. Assembly of each set is done in house and all machine work on our housings is done locally. These are great for e85 built motor application and come with pre set one bar wastegates. Also Check out turbo kit builder to get everything needed to run these turbos to their full potential in one easy step here: https://etspec.com/built-to-order-turbo-kit-b5-s4?search=turbo%20kit
NOTE: For 2003-2005 A6 & AllROAD Without modification this turbo is not compatible with automatic transmission
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These are our billet wheel version of our ko4 025/26. These turbos utilize a slightly bigger / taller compressor wheel and are rated for 28 psi. Assembly of each set is done in house and all machine work on our housings is done locally. These are great for e85 built motor application and come with pre set one bar wastegates. Also Check out turbo kit builder to get everything needed to run these turbos to their full potential in one easy step here: https://etspec.com/built-to-order-turbo-kit-b5-s4?search=turbo%20kit
NOTE: For 2003-2005 A6 & AllROAD Without modification this turbo is not compatible with automatic transmission
