Hello, I have the mods which are listed in my signature. I have yet to install my o2 dump and tubular manifold, do you think I will need to do a re-tune following the installation of these mods? I plan on going with larger injectors soon and would like to put off the re-tune until I get the larger injectors.
-Cheers

 

80 views, no replies :/

 

I would err on the safe side and say yes.

I bet you could get away with it if you already had a down pipe installed and tuned (but it's still a gamble).

My 2 cents.

 

Id get a retune. A tubular manifold will flow a lot of air and you might as well tune and take advantage of that or what was the point.

 

ok, I'll put my injectors on at the same time and do the tune

 

o2 dump and tubular exhaust manifold?...... and from your sig you are tuned? depends on how tight your tune is. A factory tune could actually benefit from those two mods and not be tuned. What AFR are you running?