Anyone with the zzp 2.5 dp with cat, have you found a successful way to prevent the code WITHOUT tuning it out? My inspection is in 3 months and i really don't feel like putting stock dp back again. I don't wanna tune for warranty reasons. I've tried weapon r's cel eliminator it worked but it ended up making me throw new codes "lean to rich and rich to lean" so that don't work. It works for 2.0s though cause it worked for my friends redline. So has anyone else found something that works?

 

GeT a tune or try the anti fouler trick

 

+1
What he said.


But honestly only 5 bolts to change out the downpipe. And 250-350 for a tune or if your worried about the tune buy a new used ecm and have the new one tuned and the old one put aside to keep for warranty sake.

 

When in doubt tune it out.