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Discussion Starter #1
For 88mm Pro mods, what size exhaust and where to get tubing from? It is 4.5" outlet is it not?
 

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Discussion Starter #3
So if its 4.5 where is a good place to get that size tubing from as i think going up to 5 inch will be tough to fit.
 

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So if its 4.5 where is a good place to get that size tubing from as i think going up to 5 inch will be tough to fit.
Give Dan at Hyperformance a call, he probably has it on the shelf.
 

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Dan's good people! If he doesn't have it, I do.

Thanks,
Brian
 

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Discussion Starter #7
I would like to hear from anyone that is using 4" with the pro mods.

Thanks,

Peter
 

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i have promod 91's on my proline 548 and they recommended 4 inch exhaust so thats what i will be running ..
 

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Give Dan Saitz a call... great guy to deal with... not only did he supply the material, but he built most of the system too
 

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I have 4" on my promod 88's....out of the turbo with a short 90 and has worked great so far...back pressure is not an issue...my exhaust is about 4 1/2 to 5' on each one......
 
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