Quote:
Originally Posted by Rodzd126
isnt the standard a 4-1?
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Models with the cat under the car have a 4-2-1 manifold. The large bore down pipe is actuary split in to two even though its just one pipe. I always found the GMC 4-1 manifold to work best on the 8V. You still get good low down power but for top end I always found it the best off the shelf manifold available. There actually made by BTB and are superb quality to boot.