ST-8
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- 5.7
Does running catless really affect performance?
2003 longtube headers exhaust question
- Thread starter Colton B
- Start date
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Davy120
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- Hemi 5.7
Not that ive noticed ^^ im running high 6 second 0-60 on 35s in a quad cab that weighs about 6200lbs lol
Camo Ram
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Colton B
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I'll let you know what I go with man
I don't have codes and I used two Magnaflow spun cats. I also have a matched pair of 03 cats I was going to use but they were bigger than I wanted to use. Space is a little restricted above the cross member.
Here is a pair I have cut to take 3" pipes without restriction, IMO nothing out flows these. And they are for Sale as a pair only.
That's what I heard about cats, and that a two aftermarket cats = one stock cat.
What did you do with the O2 sensors, from going from a single cat to two cats?
Redtruck-VA
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- Hemi-5.7, 5.9 12v & 24v diesel
I'll let you know what I go with man
That's what I heard about cats, and that a two aftermarket cats = one stock cat.
What did you do with the O2 sensors, from going from a single cat to two cats?
I have the forward O2s plugged into the passenger side collector and the rear O2s installed on a **** I welded into the ORY pipe. This is now only for the benefit of trying to keep the OEM PCM happy as the engine management is now being run from a wide band plugged into the driver side collector.
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Colton B
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Awesome thank you! Sorry for so many questions, I just don't want to install them and take them back off again. xD
Redtruck-VA
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No problem, that's a sweet looking 03.....
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Colton B
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thanks! I really yours with your drop and the SS/T rims!
