whitt1

I'm using a Flowtech cutout and a McCord powerplate no problems so far.

Hit Man X

Whitt, you gain power as you lose backpressure on your FI Tahoe. I have a 3" cutout on my "other" truck and it loses a good amount of lowend power due to the lack of back pressure...it does scare the crap out of people walking with long tubes! FI needs the least amount of backpressure that can be obtained being on a Turbo or SC.

I remember you have a 70 Series Flowmaster on you 'Hoe and I believe you'd gain some power with a large cased (22") Magnaflow. The straight shot internals will free up some power and the huge case length should keep the sound down. Hell if you went to true duals that would yield even more flow.

Hell I have even thought about having automatic cutouts. You could rig up a set to come on with an MSD Window switch from 3000-6000 rpms to preserve torque on NA rides of via TPS voltage. That way when you hit WOT they will just open to give the topend gains of an open exhuast. All the Window switch does is ground something (like nitrous 'noids) so it would just ground the motors to the cutouts and open them up...I just don't know how I'd get them to close maybe with a manual switch.

BlownChevy

iTrader: (20)

I am running the flowtech also.....What do you think of the electric add ons? is that what you are using whitt?

lm7

iTrader: (8)

whitt1 - where did you get your cutout and how much did you pay for it?? that is the one I wanna run.

whitt1

I bought the Flowtech from Summit about $27 and the powerplate from McCord about $150.

whitt1

McCord and QTEC's units look similar I bought the McCord because the delivery on the QTEC unit was over a month and McCord delivered in less than a week.The installation is easy everything was prewired,just bolt on the powerplate,run the wires to where you want to mount the switch and run one hot wire.

vortec327

i run the mccord with a 3" flow tech cut out. Sounds awsome, but she does leak a bit in the fully closed position.

GREGGO

iTrader: (2)

I just got a set of dual QTP's that will be going on soon. I will say my dislikes with the McCords is that the gears are plastic (or they use to be) and I have seen several of them break. Good luck with it. It's gonna be fun with mine since they are right off the headers.