Hey everyone I have been looking all over for a 4'' turbo back exhaust system for my 96' e-350 with the 7.3 but my attempts have been unsuccessful and was wonder if any of you guys know where I can find one... Any incite would be greatly appreciated! Thanks!

-Anthony

 

Try here...

TV Diesel - Exhaust Systems & Components

And here's a video of an install of their system.

 

PERFECT!!!! Thank you! Now the question, whats better 5'' or 4'' does the 5'' really make a difference? And how much louder is the straight pipe with no cat? is it annoying in the cab?

 

Bump... Is the 5'' really worth it on a 96' van with the older turbo that has no wastegate and in turn no way to turn up the boost, plus I can only find a 3'' downpipe anyways, I will deleting the cat though, and I will also getting the TS 6pos switch with up to 140hp setting, now mind you I won't be running on that setting at all times just when I want to smoke smoke out the road I just don't know if I should go with 4'' or 5''.... Also how much louder is it in the cab with the straight pipe with no muffler? Is it really annoying or is it bearable?

 

Acording to the video (3:10 mark), he experiences a dreep drone at 1800RPM and is slightly louder than stock at 1700RPM. I do know that the 5" will create and even deeper bellow than a 4" will. So, on that note, it's really comes down to which you want for looks and sound.

 

I'm also asking towards the performance standpoint as well. Will I see a faster spool up with the 5'' vs. the 4''?

 

Well. the faster you can get the exhaust to exit thru the turbine the faster the turbo will spool up. So in theory, the 5" would be better. Maybe ask this question on the F-250/F-350 page to see if any of the 7.3 Guys have any advise/suggestions.