Originally posted by DemonSVT:
Originally posted by Bronco_II:
IIRC the SHM headers had a much broader torque curve increase (aka more area under the curve) than the MSDS headers.
That is "what has been said" however the simple truth is no one ever dyno proved any difference between the two. Matter of fact there are 2 rather low dynos with folks using SHM headers. (there are few dynos with SHM's btw)
Yeah, cuz you had to take out a second mortgage to buy them when they were new!
$1200 at the time. 
Former owner of '99 CSVT - Silver #222/2760
356/334 wHP/TQ at 10psi on pump gas!
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'05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red
'06 Mazda5 Touring, 5spd,MTX, Black
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