Hello everyone.
I want to build a complete turbo-back exhaust for my WJ CRD. 2.7 liter, 5 cylinder Mercedes diesel. What size should I go with? 2.5" or bigger? I haven't measured the stock exhaust yet. Future plans are at most a remap, so at most 200hp.
I saw that some people are using 2.5" exhausts on their KJ CRD's, some are using 3" exhausts. Is the general consensus that a 3" exhaust is only a minimal advantage? If that's true for tuned 2.8 CRD's, it should be true for my 2.7
