I would be glad to let you or Vincent do just that, but unfortunately we are out of the 99-06 y-pipe at the moment. Probably won't have them back in stock until late March, early April.

 

no problem at all cuz im in a nnbs

 

PM sent.

 

They fit my 4x4 2500 chassis with a few minor issues.

See post 12:

https://www.performancetrucks.net/fo...2500-a-520418/

 

Good to know. Thanks for the write-up!

 

I had the same o2 sensor clearance issue you did only mine was worse. I couldn't even get a sensor in the bung. I have driven around for a year without it but I will need a new bung welded in to fix the problem. The driver side sensor fits in but its VERY hard to get to in order to replace it.

I love the headers and they fit well otherwise but the sensor bung placement is absolutely terrible.

 

Why for the love of God not design the header to fit a 4x4 first than you know for sure that it will work on a 2wd also, NOT the other way around......TSP F-Body Stainless Headers dont fit worth a crap either, seems to be a prb after they shipped them over to China to be built, go figure

 

my ARH headers and y pipe fit perfectly. had no issues and the O2 sensors fit without touching anything.

 

this thread is about fitment on 4x4 trucks.

 

Sorry to hear that. What was wrong with the fitment? Our header and catted Y-pipe fit my both of my f-body cars very well.