[parbreak]

Ordered a Borla ATAK with CF tips (non-NPP) from a vendor on Amazon who swore they actually had one in stock. Been hearing horror stories of people waiting for months for Borla to ship. Guess I will find out soon and post pics of install. Part #11921CFBA. What is the best way to deal with the NPP valves that I won't be using now?

[JayhawkSS1LE]

I am no expert and not 100% familiar with it as I havent taken my stock npp off yet, but I think just unplug them, tuck/zip tie the wires and pull the fuse. (?)

[vtwin996]

I ordered #11920CFBA (s-type non-npp) and plan to have my gm valves welded in.. if possible and yes been waiting over 4 months now....

[parbreak]

What is the process to weld in the GM valves? Bore a hole in the Borla tips and install the butterfly?

[parbreak]

Can't remember which one, but of the axle backs comes with brackets that you mount the actuator to. Seems pretty slick.

[vtwin996]

Originally Posted by parbreak

What is the process to weld in the GM valves? Bore a hole in the Borla tips and install the butterfly?

I plan on having the complete gm valve cut out and welded it into the Borla, hopefully the pipes are the same size... I read another forum member had his GM AFM valves welded in the Borla x-pipe..

[parbreak]

Well it look like the Amazon vendor actually had it in stock. Got a tracking # today and it should arrive on Thursday.

[StateOfMind415]

Originally Posted by vtwin996

I plan on having the complete gm valve cut out and welded it into the Borla, hopefully the pipes are the same size... I read another forum member had his GM AFM valves welded in the Borla x-pipe..

I almost tried this route and physically measured it out. The stock NPP valve's diameter is 2.4" OD, while Borla's outer pipe is 2.75" OD. While you can do it, I would not recommend adding the stock valves to Borla's axleback since it will bottleneck the exhaust flow.