I got tunes up in dallas back in april. I put done 298/293 with a cat. I did what you said and got rid of it and put in a UR test pipe. I am now looking at buying the helix intercooler pipes. Would I need a retune by adding these?

 

nope. it only helps with boost response. it makes it hit faster and more solidly.

 

If you are running a MBC, make sure to crank down the boost a bit (to avoid a spike) when you install those IC pipes.

 

sweet, thanks alot.