[insidethreat07]

Originally Posted by Darth Martel

This is a good question/point. If you have the SW headers you WILL throw a code. You will need a tune to get rid of it and you should get a tune to take full advantage of what you're adding to the system. If you did the cat back exhaust or axle back exhaust you shouldn't be throwing a code and you don't need a tune. If you are throwing a code, that indicates a bad weld and you have a leak in your system.

Thanks for the info. I plan on just doing the cat back for now and when my warranty is up, I'll do the SW headers and get a dyno tune as well. I want to keep the warranty for as long as I can lol.

[1badrwd]

Originally Posted by Darth Martel

This is a good question/point. If you have the SW headers you WILL throw a code. You will need a tune to get rid of it and you should get a tune to take full advantage of what you're adding to the system. If you did the cat back exhaust or axle back exhaust you shouldn't be throwing a code and you don't need a tune. If you are throwing a code, that indicates a bad weld and you have a leak in your system.

I must have gotten one heck of a system then because I put long tube headers with a off road pipe on and I have not thrown any codes! Put about 100 miles on it so far with no issues at all. Still getting it tuned but have a couple week wait for an opening.

[moonrider]

Originally Posted by insidethreat07

Do you have aftermarket headers?

No

[moonrider]

Originally Posted by Darth Martel

plenty of threads here in the forum about that

I read through a lot of threads on here and never heard anything bad welds.

Sorry forum master

[moonrider]

Originally Posted by insidethreat07

Thanks for the info. I plan on just doing the cat back for now and when my warranty is up, I'll do the SW headers and get a dyno tune as well. I want to keep the warranty for as long as I can lol.

You better check with SW before you do that. The SW headers includes everything back to the mufflers.

[jimmypop13]

Originally Posted by moonrider

You better check with SW before you do that. The SW headers includes everything back to the mufflers.

No. It's a modular system. I have SW headers and x-pipe down to the stock muffler. You can get any configuration

[jimmypop13]

Originally Posted by 1badrwd

I must have gotten one heck of a system then because I put long tube headers with a off road pipe on and I have not thrown any codes! Put about 100 miles on it so far with no issues at all. Still getting it tuned but have a couple week wait for an opening.

This is weird. It may happen soon then. I threw codes two days after I had headers and high flow cats put on

[moonrider]

Originally Posted by jimmypop13

No. It's a modular system. I have SW headers and x-pipe down to the stock muffler. You can get any configuration

If you do the cat back first you will have to call SW and special order just the headers.

[1badrwd]

Originally Posted by jimmypop13

This is weird. It may happen soon then. I threw codes two days after I had headers and high flow cats put on

I thought the same thing. I figured I'd throw codes immediately with headers and no cats. It's been almost a week now and nothing still. Very strange

[Darth Martel]

That's seriously beyond amazingly lucky. Getting rid of the cats alone should throw a code. People are getting codes for itty bitty vaccum leaks. You've swapped out the entire exhaust system including LT headers and your ECM doesn't even notice? You should play the lottery with that luck.

***edit*** you said headers and off road pipe not full exhaust... my mistake. You should still see a code though.

Originally Posted by 1badrwd

I must have gotten one heck of a system then because I put long tube headers with a off road pipe on and I have not thrown any codes! Put about 100 miles on it so far with no issues at all. Still getting it tuned but have a couple week wait for an opening.

[1badrwd]

Originally Posted by Darth Martel

That's seriously beyond amazingly lucky. Getting rid of the cats alone should throw a code. People are getting codes for itty bitty vaccum leaks. You've swapped out the entire exhaust system including LT headers and your ECM doesn't even notice? You should play the lottery with that luck.

***edit*** you said headers and off road pipe not full exhaust... my mistake. You should still see a code though.

I did put a full system on it. Long tube headers, off road pipe, x-pipe, and axle-back.

I know I can't believe it either! Just drove it all day and put about another 100miles of stop and go on it and still no codes.

[Richkidd87]

So do u have any CEL Sledge?

[JonGSA]

I just put on my SW NPP (non AFM) catback a few days ago. No codes at all with 100 miles on it now....other than the crappy o2 sensor connector falling apart after the install.

[Darth Martel]

Did you install O2 sensor simulators? We need some experts in here to help figure this out. If we can do a header install without having to do a tune and not throwing any codes, that's impressive.

Originally Posted by 1badrwd

I did put a full system on it. Long tube headers, off road pipe, x-pipe, and axle-back.

I know I can't believe it either! Just drove it all day and put about another 100miles of stop and go on it and still no codes.