Quote:
Originally Posted by JP10
Considering test pipes as well but don't have a MPE cat back. Are you considering primary or secondary cat delete? Or both?
Also stumbled upon this old thread while researching around, considering it over test pipes as it's essentially free and like OP had mentioned not trying to drop a grand on a set-up that I don't like.
https://www.m3post.com/forums/showthread.php?t=457202 |
Couple things:
Test pipes are ~200 on the used market and 400 brand new. If you can DIY the secondary cat gutting, you have the tools to DIY the test pipe install as well. If not, then the secondary cat delete will require similar / more labor for a shop to do.
Power/Tq gains from test pipes are substantially more.
Test pipes are fully reversible as long as you keep the stock cats. The secondary cat delete will be more of a permanent mod. This is something to keep in mind if you're worried you won't like the result.
Plus side to secondary cat delete:
Test pipes will throw a CEL without a tune, secondary cat will not.
Secondary cat gutting will look stock underneath.