Originally posted by Ed98.5SVT:


1) Your saying that since the distance from the exhaust ports to the manifold outlets on bank 1 are shorter than bank 2, that trying to equal out the length of the downpipe will effect the factory pulse tuning of the exaust??

2) This makes sense, but I question why the Brullen Y made 4 HP and 4 or 5 lbs/ft of torque more than the Sho-Shop Y???

Interesting discussion.





1) Yes I am...
2) The MSDS Y made 4 HP more than SHO Y shop too (see CTA dynos). And THAT is with the V bend in the back primary...if it were mandrel bent it would be even better. And I suspect the reason is that it is pulse tuned (like stock or modified stock which it emulates). IMO, best Y is probably a modified stock with opened up collecter OR MSDS with mandrel bent section in rear primary...

Or like Demon says true duals..the way I would go if I were starting over..




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