Anybody out there knows the exact measurement (lenght) of RB downpipe 2.5 diameter for S4 NA. Please help. Thanks

 

I'm not sure how you want the measurement, but with the pipe sitting as it would on the car, I get about 23" flange to flange on the top & 26.5" flange to flange on the bottom. The end will sit about 3" from where the OEM precats would end (shorter).

 

thanks for the info.