4 bolt turbo headers?

aquickv6

New Member
Joined
Sep 4, 2004
Who makes or made (if their out of business) the best set of headers for a 4 bolt turbo? Will this work with a 3.5" THDP or is a custom DP needed?
Thanks
 
What's the difference between the AZGN headers and TA Performance?

Are these about the same as the old ATR headers?
 
aquickv6 said:
What's the difference between the AZGN headers and TA Performance?

Are these about the same as the old ATR headers?

There is no difference between TA and AZGN headers, they are the same. TA and I worked together in the design, testing and manufacturing of these headers.

They are the result of over 3 years work and testing, and in no way are they similar to ATR's headers.

My 4 bolt protype header is now at the fabricators and should be available soon. They are also seting up to build a 3" and 3-1/2" downpipe with the integral wastegate, as well as versions for external wastegate
 
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