Catted downpipes question..

Onemoosehorn · Jun 23, 2018

So my 18 screw is coming up on 3500 miles and I’m thinking about changing the downpipes/ turbo adapters. Once I change them I’ll decide if I want to change anything exhaust wise, depending on the sound. I’ve read and listened to a ton of reviews and videos, but wanting to hear my own truck first. I’m not partial to any particular brand, just looking for performance. The issue is I’m in northeast Pa. So I def need something that’s going to hold up against all the harsh winters here. I would like to go the SPD adapter and SPD catted downpipes route, but worried about them not being stainless. But I’ve read the Stainless works catted pipes have some fitment issues. Hanging lower than the skid plates, but are stainless steel.

So anyone who is is the salt belt region have recommendations on which downpipes to go with?

TXRaptor · Jun 24, 2018

Most of them have CEL issues. I called Stainless Works and they told me I would need a tune to get rid of CELs, just like their Gen 1 headers. SPD is the only one that does not because they use a cell count closer to the factory DPs.

Onemoosehorn · Jun 24, 2018

That’s another reason I’m leaning toward SPD. Unless I run O2 extenders with the Stainless Works. Worried about the SPD’s longevity though.

nikhsub1 · Jun 24, 2018

Onemoosehorn said:
That’s another reason I’m leaning toward SPD. Unless I run O2 extenders with the Stainless Works. Worried about the SPD’s longevity though.

My business partner just got the SPD DP - looks to be coated with something, it doesn't look like bare metal. Anyway, you could always get them ceramic coated. It will help with heat reduction and protecting the metal.

rubyred_gen2raptor · Jun 24, 2018

Onemoosehorn said:
So my 18 screw is coming up on 3500 miles and I’m thinking about changing the downpipes/ turbo adapters. Once I change them I’ll decide if I want to change anything exhaust wise, depending on the sound. I’ve read and listened to a ton of reviews and videos, but wanting to hear my own truck first. I’m not partial to any particular brand, just looking for performance. The issue is I’m in northeast Pa. So I def need something that’s going to hold up against all the harsh winters here. I would like to go the SPD adapter and SPD catted downpipes route, but worried about them not being stainless. But I’ve read the Stainless works catted pipes have some fitment issues. Hanging lower than the skid plates, but are stainless steel.

So anyone who is is the salt belt region have recommendations on which downpipes to go with?

I'm Running SPD Downpipes + Turbo Adapters, I'm not sure what but like others have mentioned there is some type of coating on the SPD downpipes, with 0 Fitment issues.

Onemoosehorn · Jun 24, 2018

Thanks everyone. Think I’m going call SPD tomorrow and see exactly how their downpipes are built. And I’m going to see about ceramic coating.

nikhsub1 · Jun 24, 2018

Onemoosehorn said:
Thanks everyone. Think I’m going call SPD tomorrow and see exactly how their downpipes are built. And I’m going to see about ceramic coating.

Let us know what they say... IIRC they use magnaflow cats - not my fav but whatever...

Onemoosehorn · Jun 24, 2018

I’ll update this once I find out.

rubyred_gen2raptor · Jun 24, 2018

nikhsub1 said:
Let us know what they say... IIRC they use magnaflow cats - not my fav but whatever...

I think you're right , however if you call them and want something different they can work with you on throwing higher flow cats in however that might increase the probability of a CEL being thrown.

Onemoosehorn · Jun 24, 2018

rubyred_gen2raptor said:
I think you're right , however if you call them and want something different they can work with you on throwing higher flow cats in however that might increase the probability of a CEL being thrown.

From what I’ve researched, The O2 sensor extenders will avoid the CEL won’t they? I’ll see what SPD has to say though.

On a side note, I saw on another thread that you took the Corsa res delete pipe off. So you basically have the Corsa sport. Your set up is exactly what I was wanting to run. Turbo adapters, downpipes and Corsa sport. Don’t want the truck to be obnoxious. I’m leaning away from the extreme for now. By any chance do you have any sound clips of your set up right now? How do you like the Full Race intake?

Catted downpipes question..

Onemoosehorn

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