Ok, my new to me 94 has 4" straight back from the cat. How do you guys like the sound of your exhaust without your cat? Is there even a noticable difference? I wouldnt mind it a little quieter, but the turbo sound is what i am really looking for. what do i need to do to acomplish this? Also, right now the downpipe is 3" till it gets to the cat, then 4" after that. Would a 4" make a difference in sound or performance? Lastly, what is a safe EGT reading PRE turbo? Thanks for the help guys.
Ryan

 

Well if your after turbo sound you might want to look into taking the silencer ring off and getting a BHAF, like the scotty II,

 

Ill do the silencer ring in the morning, i read that alot of people dont even notice a difference.

 

There is a difference without the cat. It is a bit louder but nothing like a 24 valve . The smell is different also. What you should notice without it is better response when taking off down the road.

 

You know when I put on my new 4" exhuast last week I could smell the difference. Why is that? I like the smell better

 

the cat will kill the turbo whistle more than a straight through muffler... to really hear the turbo scream w/ the silencer removed, you need an open filter like a BHAF

safe sustained EGT is 1250 or so. for a a few seconds, you can go higher... I see 1600* often

forrest