They don't effect emissions in any way. The resonator deletes are after the cats.I would like to know if anyone has tried the new Shifteck mid-pipes. Definitely interested if they don't throw a CEL without a tune ...........
You definitely need a tune.Mid pipes Bro ......... from the factory headers to the x-pipe.
https://shifteck.myshopify.com/collections/ford-mustang/products/shifteck-off-road-mid-pipes-gt350
I have some in a box, but am waiting for my new voodoo to get here before i install...so it’ll be a bit, but i’m Fairly sure they run their’s with the spacers and no tune and there is no CEL. Just like the coyote guys running the O2 extensions.Yeah ....... they say on their web page that they offer a o2 Spacer Kit. Just wondering if anybody had tried a set without a tune.
I run the LP X Pipe Res delete on my GT350. The build quality is top notch, as is the fitment. Install was a breeze and the sound is absolutely menacing.Here's another great option for you. Ours is T304 where the Shifteck is only 409.
In stock, ready to ship and on sale. Coupon Code: FIREWORKS
https://www.lethalperformance.com/lethal-performance-2015-2018-gt350-t304-stainless-steel-resonator-delete-x-pipe.html