so the exhaust system im going to be using requires the factory upper cats to be reused in their standarf spot to prevent engine lights coming on, my question is since the urd y pipe ill be using removes the down stream cats are these the same between all four cats?
as i cant afford to have the car off the road, would like to buy the headers as the last piece of the exhaust and hopefully use the downstream cats to give to my mate so he can weld them in then when they are done fit them up.
as i cant afford to have the car off the road, would like to buy the headers as the last piece of the exhaust and hopefully use the downstream cats to give to my mate so he can weld them in then when they are done fit them up.