will i need a tune for 1.6 rr and lt4 spring install...

i know that my valves are opening a little more and that i will in turn be increasing the amount of air going thru the system... but is it enough for a tune?

 

A tune isn't necessary for a rocker upgrade.

 

On the other hand, you could get a tune now and take advantage of additional tune at discount---from most tuners. Any tune should give you some improved performance. Ask your tuner if it is a good idea to throw in a Knock Mod since the RRs should be a bit noiser. Also you can intall a 160 deg. stat and have that programed along with setting the rev limiter higher than the stock---which will keep you from running out of steam. JMHO