Exhaust Question

[2stroke]

I need to replace my exhaust and would like comments about keeping the converter and just strait pipe it after the turbo to the rear. My truck is 1997 f350

 

[DaveBen]

If your state does not do smog checks, why keep the Cat?

 

[2stroke]

That what I am getting at why keep the Cat? Will performance and or mileage increase?

 

[Thewespaul]

Its less restriction for the engine lets put it that way. Diamondeye makes turbo back kits for a good price

 

[nj_m715]

diamond eye from amazon, 200 or 300 bucks, might as well replace the crushed down pipe too

 

[austin92]

diamond eye from amazon, 200 or 300 bucks, might as well replace the crushed down pipe too

Did powerstrokes get the same crushed dp’s as idi’s?


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[79jasper]

Did powerstrokes get the same crushed dp’s as idi’s?


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Yes.

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[Garbage_Mechan]

Not the exact same pipe but the exact same issue.....pipe flattened down to 1 1/2 “ or so. This was to clear the cab that went in to production in 1980 before diesels were thought of yet. Instead of modifying the cab they flattened the pipe.