I have been doing some research and trying to figure out what the stock boost is compared to just the stage 1 91 octane boost is. So far not sure about 100% but think stock boost is 8.7 i believe? Also would i need their diverter valve and inlet pipe or could pipe stay stock and use the diverter valve from TT 225?

 

You can leave the pipe in and use the 225TT valve. Should go up around 40-45hp.

 

my chipped ATW boosts around 18-19psi.

Forge DV is where its at. Nothing else is needed after that! just enjoy moar power

 

Thanks yea i will probably just get the tt one and get her Apr tuned.. The forged diverter valves can be a little spendy and don't really plan doing much more performance wise than that just put k and n filter to help it breath a little more. Thought also about getting rid of one of the dual stock mufflers but dont want hardly any sound increase just a little better flow. Has anyone done this?

 

best bet would be to get a 034 motorsports HFC. Removing one of those might make it a bit loud with little power gain.

 

Removing the first muffler doesn't make it a whole lot louder unless you remove or get a new rear muffler. I don't have a front muffler and my car isn't all too loud.

 

You are correct on the stock boost, it is around .6 bar which is 8.7 psi.