URD Mark 2 Y Pipe V6

Ah! Makes sense. I’ve had mixed results with different exhaust setups on street cars but tubing diameter was definitely a factor. Is anybody on here running widebands and tuning their own trucks?

 

If I remember correctly that would be with the individual header tubes. But from the collectors back larger diameter pipe within reason works better. The previous pulse helps scavenge the next. That is why we ran crossover headers on the late models we raced. By combining header tubes from opposite heads you could increase the scavenge effect. The reason being was the firing and exhaust were timed closer to each other in a crossover configuration.

 

Anymore feedback on the URD MK2 y pipe, or others? I'm seriously looking to do this for the clearance but don't want a cel problem to deal with.

 

I had the URD Y pipe, and i don't think it was built with gaining clearance in mind. The driver side pipe goes right under the transmission pan, and sits lower that everything else under my truck when I had it.

I now have aFe's ypipe which is a much cleaner install.

 

Thanks for the info.

 

does the Afe y pipe throw a check engine light after install?

 

No check engine light on my end.

For the URD, I had a CEL when I first installed them. I then used copper anti-seize for the O2 sensors and no more CEL for the 2 years I owned it.