SVC707

iTrader: (33)

I currently have a QTEC on the car but once i get the GMMG should i even bother putting the QTEC back on. i saw a post stating that open or closed with the GMMG there was no gain. so if thats true then there is no point keeping it is there

Thanks Steve

a98ws6

iTrader: (48)

my buddy had the same exact setup yor asking about, and he picked up a few horses on the dyno with it open

Mike K.

qtec is always worth it, I would put it back on.

Ryan02SS

iTrader: (3)

The faster the exhuast can get out the more power you make. I went through the same decision when I installed my Corsa muffler and decided to leave it in the I pipe. Corsa is supposedly one of the top flowing catbacks and I gained 5rwhp @ 5rwtq with my QTEC open on the dyno. You will more than likely see a similiar gain and still have the ability to be really loud when you want too!