Thread: SPF Headers and side pipes
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Old 03-03-2012, 06:54 PM
Pman1961 Pman1961 is offline
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Join Date: Aug 2008
Location: Memphis, TN
Cobra Make, Engine: Superformance SP02423 KCR 445W 611hp 599ft lbs
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Dana....what comparisons did you do? Sidepipes on and off? I went with Performance Engineering modified pipes 3" baffle no packing on my SPF with 445sbf. The sound alone is worth any performance I may have gained. Of course you gotta like loud! My buddy picked up 38hp (don't know if flywheel or rear wheel horsepower) per Olthoff using the Firefly pipes over the stock pipes. Our motors are very similar constructed with the exception he has 427sbf. I'm happy with my pipes but those Firefly's are beautiful pipes!
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