||03-26-2013 06:30 PM
JBA long tube headers low end torque
I recently installed JBA long tube headers on my 2005 Tacoma 4.0L along with the URD rear O2 simulator. I also made a rook mistake and punched out the rear cats with a piece of pipe. This has resulted in some noticeable loss of low end torque that I wasnt prepared for. Nice high rpm gains but definetly need the lower end more. Now what i know is the long tube tend to be for higher RPM gains so I don't need educated on that. But im thinking if i wouldn't have knocked the rear cats out it wouldn't have effected my low end torque as much because i would have retained some back pressure. Would it be beneficial for me to put the cat or resonators back on to regain some back pressure? Would a URD MAF Cal. be beneficial? Any other suggestions to regain some low end torque. Also, i'm not worried about passing emmissions, don't have to.