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Discussion Starter #1
Have a basic question to ask fellow owners....how much of an increase can I expect by the installation of headers w/ hi flow cats through a GHL bullet exhaust? Thanks
 

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Not to much at idle or low RPM's very nice increase at higher RPM's. :cheers:

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It's not NOISE, it's MUSIC! :sneaky:
 

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Subjectively, +10% at idle or cruise with a substantial difference in tone during cruise. +40% at WOT again, with a substantial difference in tone. I have the Supermaxx system with stock Ti exhaust. During the dyno runs, I was forced to cover my ears.
 

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Over the stock system...it will be a big difference. At idle as well as WOT. You may want to consider a partition if you want to hear your tunes from the stereo.
 

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Discussion Starter #7
thanks for the info, looks like a partition is in order after the headers...appreciate the info obtained in this forum
 
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