Just curious if anyone on the forum have successfully installed test pipes on the 370 and have had success with eliminating the CEL? My 370 is coming in a couple weeks and this most likely will be my first mod I have heard the CEL fixes are 'less' successful on the new HR motors...

 

We've installed out test pipes on a 370 with the cel fix and have had no check engine light. However, some cars react differently to the test pipes we have seen both situations. If your worried about a check light I would go with some HFC's they are less likely to cause a check engine light.