I Want To Ditch My Cat But Not My Muffler. Bad Idea???
#1
I Want To Ditch My Cat But Not My Muffler. Bad Idea???
Now that I eliminated the EGR valve on my 97 Cummins (california edition) I want to ditch my Cat but I don't want to have alot of drone in the cab as i drive the truck alot. I am just trying to increase the efficiency of my exhaust as i am adding a #10 plate and a 3k GSK. If I fully Strait pipe the exhaust (eliminate the cat and muffler) is it going to be excessivly loud in the cab at highway speeds. Would i be upset with myself if i leave the muffler in. I live in Idaho so emmissions or the legality of exhaust is not an issue.
#4
#5
i couldn't stand mine when i had it straight piped. about 2100 rpms it just killed my ears. like doc said, with the mods you are planning you should just head straight for the 4" exhaust. i'd do that before your planned mods because the exhaust will help with the added exhaust temps your mods are gonna produce.
#6
Thats is a good point....I strait piped mine too (12V) and found that it was a waste of time and effort. The drone was terrible, and it sounded like a tractor (which is ok if your a farmer). Drove its like that for a few months and then went to a 4" with muffler. Its awesome now.
This is an exhaust from one of our sponsors (I just picked one at random) and its pretty hard to beat:
http://www.vulcanperformance.com/ser...minized/Detail
Here it is in SS: http://www.vulcanperformance.com/ser...ainless/Detail
You can get a 5" for a little over $300
This is an exhaust from one of our sponsors (I just picked one at random) and its pretty hard to beat:
http://www.vulcanperformance.com/ser...minized/Detail
Here it is in SS: http://www.vulcanperformance.com/ser...ainless/Detail
You can get a 5" for a little over $300
Last edited by Dr. Evil; 08-27-2007 at 11:04 AM.
#10