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3" downpipe require engine management?
Posted: Fri Mar 27, 2015 2:42 pm
by brodie.gordon
Currently running 3" from the mid pipe back and wondering if I go with a 3" downpipe will I need engine management? I was also going to install a new header because I think my current one is bad.
Running a td04, top mount intercooler and cone intake.
Thank you for any information and opinions on this.
Re: 3" downpipe require engine management?
Posted: Fri Mar 27, 2015 3:26 pm
by mike-tracy
In my opinion and experience, the 3" pipes counterintuitively made my td04 spool up slower. And since I wasn't running the turbo over 12psi, the freer flowing exhaust's benefits were wasted. With a td05 and robtune, the stock exhaust choked, and the larger exhaust made it come alive.
So, imo, 3" pipes don't need engine management and made my car slower. On a larger turbo, Def upgrade the pipes and engine management.
Re: 3" downpipe require engine management?
Posted: Fri Mar 27, 2015 6:33 pm
by brodie.gordon
Thank you. Sounds like I am good where I am at, haha.
Re: 3" downpipe require engine management?
Posted: Sat Mar 28, 2015 4:20 am
by turbo970
i run a full 3" tbe and my car seems more alive. my set up is a jdm td04 06 xt tmic fcd and running 14 psi