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drudis · 01-20-2004, 01:55 PM

I asked the same question. Griggs Racing suggested the 1-5/8" headers. They said better torque, and easier fit. Not much gain at top end to justify the loss in midrange.
This is on my 425rwhp with an S-trim roadrace Mustang.

01-20-2004, 01:55 PM	#11
drudis Moderator Join Date: Dec 1999 Location: Livonia, MI, USA Posts: 1,194	I asked the same question. Griggs Racing suggested the 1-5/8" headers. They said better torque, and easier fit. Not much gain at top end to justify the loss in midrange. This is on my 425rwhp with an S-trim roadrace Mustang. __________________ Darius Rudis, Moderator Corner Carvers Delight 1989 Mustang LX - Open Track Car http://www.dariusrudis.com