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Old Mar 5, 2009 | 03:03 AM
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Default Cat forward.

http://cgi.ebay.com/ebaymotors/Dynat...Q5fAccessories

I was thinking of buying this setup for my summer project. Before I order you guys have any thoughts or suggestions. I was gonna fab the rest of the current exhaust into it until I could afford to get a highflow X pipe and dual the rest of the way out. I imagine that setup would make a bit of difference in power.
 

Last edited by traker1001; Mar 5, 2009 at 03:06 AM.
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Old Mar 5, 2009 | 07:54 AM
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Unless you are stuck on those DynaTech, you can get a set of TL Pacesetters for 300 and keep your cats you have. They also do make cat look-alikes, meaning they look just like cats but are completely hollow. But that leads to the question on if you have emission tests where you are at and need them to pass.

That system you are looking at is 1400

With the Pacesetters at 300, two new FlowMasters or MagnaFlows at 75 each, 3 or 4 inch tips (assuming you are using tips and not downturns) then thats another 40-50, welding everything at most i think would be around 300. So thats only 800.
 
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Old Mar 5, 2009 | 08:11 AM
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The Dynatechs have the most gains of any headers I've seen actual dynos of. But the Pacesetters are not far behind at 1/3 of the money.
My only issue with the Dynatechs is that they are not ceramic coated. The stainless won't rust, but will discolor and also won't do anything to bring down engine or engine bay temps. If you are going to get them, look very seriously into having them ceramic coated, inside and out...
 
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Old Mar 5, 2009 | 08:53 AM
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Ceramic is nice indeed but is it needed and does it out weigh the cost? Why try to lower the engine bay temps unless you are running an open air element with a CAI? Plus with a full open grill like what the Ram has, any forward movement of the truck will allow substantial amounts of fresh air to move into and through the engine bay. Im all for ceramic coating, dont get me wrong. But not a lot of ppl NEED it (keyword 'need') and then there is the cost. I do agree SS will discolor with high temps.
 
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Old Mar 5, 2009 | 09:41 AM
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Are you serious? The benefit of ceramic coated headers have been documented for years! First, the coating promotes denser, more potent fuel/air charges by insulating the engine bay from exhaust heat. At the same time, it accelerates the pulsed-vacuum effect on “tuned” headers, resulting in more effective scavenging of cylinders. The increased velocity of exhaust gases produced by higher exit inertia not only clears each cylinder more quickly; it also draws in the next fuel/air charge more efficiently.

Because of its low emissivity and insulating effect, high quality ceramic coatings create a thermal barrier to protect headers - inside and out - while reducing heat transfer into the engine compartment. But the ceramic coating does so much more than just protect headers from thermal fatigue. Plugs, wires, fan motors, water pumps and other heat-sensitive parts get a break, too, in a cooler environment. Plus, horsepower increases dramatically due to the more efficient scavenging and lower temps.

And just how much of that air that comes through that big grill makes it past the radiator sitting behind that grill?

I can't believe anyone contemplating spending $1000 or more for headers (assuming you paying for installation), and wouldn't spend the extra $ on ceramic coating. Pacesetter adds about $100 to the cost of their headers for a factory ceramic coat and about $200 for Jet-Hot, 1600 degree rated coating. Your telling me you can't justify at least a 10% cost increase for at least the factory coat?
 

Last edited by HammerZ71; Mar 5, 2009 at 09:49 AM.
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Old Mar 5, 2009 | 10:27 AM
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We will all agree heat leads to stress which in turn leads to fatigue and failure. My point isnt the the benefits of ceramic but rather the cost v/s want v/s need. I had LT ceramics on my 442. Did I ever notice a difference? Slightly. Was it worth it IMO? No, not at all. Even though the LT I bought were used and in excellent shape, I still paid a pretty penny that I could have used elsewhere.
 
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Old Mar 5, 2009 | 10:28 AM
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I love this forum, Always count on you guys to be straight with me. Ok, How bout this, http://cgi.ebay.com/ebaymotors/_Car-...4506.m20.l1116

With stock cat's. At later time I will get False cats, A couple of sims for the O2 sensors, and a couple magnaflow mufflers.

This better? BTW, No emissions, Just visual inspection here.

While I am under there, Should I dump the resonator?
 

Last edited by traker1001; Mar 5, 2009 at 10:32 AM.
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Old Mar 5, 2009 | 10:30 AM
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I dont think they make O2 sim for the Ram do they? All I know is we take the the O2 and run 2 non-foulers with steelwool stuff between them and pipe to prevent any codes.
 
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Old Mar 5, 2009 | 10:38 AM
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Yeah, you can get sims for the hemi, but they are pricey, like $100 pricey. I've NEVER had an issue with non-foulers, I've only even had to go with steel wool once and I've done prolly a dozen exhausts for friends where the cats went bye-bye...
 
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Old Mar 5, 2009 | 12:17 PM
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Originally Posted by traker1001
I love this forum, Always count on you guys to be straight with me. Ok, How bout this, http://cgi.ebay.com/ebaymotors/_Car-...4506.m20.l1116

With stock cat's. At later time I will get False cats, A couple of sims for the O2 sensors, and a couple magnaflow mufflers.

This better? BTW, No emissions, Just visual inspection here.

While I am under there, Should I dump the resonator?
As Dirty Dog has said before, we already have high flow cats, we won't notice really any horse power gains by getting rid of the cats.

Originally Posted by weedahoe
I dont think they make O2 sim for the Ram do they? All I know is we take the the O2 and run 2 non-foulers with steelwool stuff between them and pipe to prevent any codes.
K&N makes, or at least made them for these trucks. Can't find the link to them anymore, but I used to have one. They were also pretty cheap, and they worked for the Hemi.
 
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