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Discussion Starter #1
does the orp have to be 2.25 or 2.5 to fit with the svt header? please help!!!
 

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RespectMyAuthoritah!
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as per your question in the SVT Header thread. It depends on the collector of the SVT Header (Where all they all come together) and the rest of your exhaust. It can technically be either or. I have a 2.5 hi-flo to a 2.25 inch resonated Magnaflow Exhaust.
 

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Your stock exhaust is 2" so going to 2.25" is a waste of time.
Better off going up to 2.5"
 

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RespectMyAuthoritah!
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on this side of the pond the stock exhaust is 1 and 7/8 [wave]
 

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Discussion Starter #6
well i have a magnaflow exhaust so would 2.25 or 2.5 work better on the orp. also what should the flex pipe size be?? same as orp?? thanks..
 

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Shot me 3 deer!!!
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The ORP basically deletes the catalytic converter so you have a better flow w/ less restrictions. However, it will obviously not pass emissions if you do this!!
 

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well i have a magnaflow exhaust so would 2.25 or 2.5 work better on the orp. also what should the flex pipe size be?? same as orp?? thanks..
What size is your exhaust now?
 
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