Exhaust
#1
Exhaust
Hey Guys,
need some input here. I noticed that the stock muffler is starting to rust out.
The truck is an early 99 PSD and is stock other than the 6637 filter mod, ccv mod and the upgraded headlight wiring mod. I don't haul or tow with this truck.
My question is: Is there any benefit to upgrading the exhaust or should I leave it stock? How about the Cat converter? I live in Washington and need to have emmission testing done periodically. When I change out the exhaust can the cat be omitted?
Thanks in advance
need some input here. I noticed that the stock muffler is starting to rust out.
The truck is an early 99 PSD and is stock other than the 6637 filter mod, ccv mod and the upgraded headlight wiring mod. I don't haul or tow with this truck.
My question is: Is there any benefit to upgrading the exhaust or should I leave it stock? How about the Cat converter? I live in Washington and need to have emmission testing done periodically. When I change out the exhaust can the cat be omitted?
Thanks in advance
#3
Cut the muffler off- cheapest way to straight pipe your exhaust.
Walker BTM (big truck muffler)-this would just take the place of your old muffler, but with the straight through design will give you better whistle and lower egt's.
Cat BACk Exhaust-from the cat back
Turbo back exhaust- from the turbo eliminates cat converter.
It really depends if you want to go for style and get duals, or go with performance and get a 4" exhaust system, or just go big and do the 5" deal. Can even do stacks. Its really up to you what you want. I really like the 5" MBRP exhaust i have on my truck, however i really like the look of dual stacks. with any way you go you will lower your egt's, pick up a little mpg (not much), and make your truck sound awesome. what's your budget look like for this project? cuz that is a major factor as well...good luck
Walker BTM (big truck muffler)-this would just take the place of your old muffler, but with the straight through design will give you better whistle and lower egt's.
Cat BACk Exhaust-from the cat back
Turbo back exhaust- from the turbo eliminates cat converter.
It really depends if you want to go for style and get duals, or go with performance and get a 4" exhaust system, or just go big and do the 5" deal. Can even do stacks. Its really up to you what you want. I really like the 5" MBRP exhaust i have on my truck, however i really like the look of dual stacks. with any way you go you will lower your egt's, pick up a little mpg (not much), and make your truck sound awesome. what's your budget look like for this project? cuz that is a major factor as well...good luck
#4
If it were me, I'd do a 4" turbo back and say bye-bye kitty. You don't need the cat, and the guy doing emissions testing won't know it had one to begin with (most PSD's don't have a factory cat, just the early birds and Cali/Canada models). I put 4" turbo back duals on mine from Diamond Eye that I bought from Diesel Power Products right in Spokane. If you want duals I'd suggest MBRP, Diamond Eye's fit was not the greatest. Or if you don't care about duals, buy a single 4" and save yourself a ton of $ (which is what I probably should have done...) Give DPP a call, they were super helpful when I was dealing with them, they are local for you, and they are a site sponsor... can't go wrong!
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