I own a 2005 GT with a magnafolw catcack & a K&N Intake, Yes I feel the power increase, I'm thinking about the BBK dual twin throttle body for my next HP upgrade, Does it really do 12-15 HP at the wheels, does anybody have a real review (meaning you have used it)? SO. CAL. Black on Black, Eiback, Tokico, Foose, Nitto, Eating 350Z'S and spitting them out like BUBBLE GUM, needs to know.
Michael

 

I have not used one personally, but do a search on the forums here. There is a lot of information to find. Several guys used them and reported no noticeable change in power, and a lot of trouble with tuning and poor throttle response.

I would save my $$$ for something else. You already seem to have upgraded suspension, intake, and catback. You need either GEARS or HEADERS in my opinion.

 

I have one and I have dynoed the car with and without, There is little to No Gain with a tune,
8HP without a tune, and better throttle response. it's a good mod if you do not plan to tune,
I am finding out that alot of the aftermarket parts claims are bogas,

The only Parts that that will get you any gain with a tune:
CAI
SCT / Diablo
UDP's

The Only Parts that will get you any gain without a tune
K&N Aircharger (only one that has a stock size MAF opening)
or K&N Drop in Filter
62mm TB
Underdrive pulleys

Just my experiance not Fact..

 

Avoid the headaches and wasted $. Stay away from the T/B swap. I speak from experience on this one!

 

Yeah I have heard freaking nightmare stories on these. Getting them tune etc......