What did you do to your NNBS GMT900 Tahoe/Yukon Today?

[Smokymance]

I have a Corsa Touring with a blower, she runs like a top! I thing the 3"vs3.5" hype is a bit overboard.

AGREED...most just go w the appropriate muffler so they don't have to downsize or upsize tubing when keeping stock pipping...

Jenna do you guys have headers on the truck? hows it do w the corsa?

 

[JennaBear]

Yes, Justin's truck has the Doug Thorley Tri Ys on it with the TVS1900. He had an MBRP exhaust on there, and wound up going back to stock, it was WAY too loud once the LTs went on. If you have a Magnaflow, you will probably hate it with LTs. With my supercharged 04, it sounded great, until I put on cam and headers; once a blower on there, it sounded like the end of the world, and I switched to a Corsa Touring.

I didn't hesitate with my last two Denalis, and went right for the Touring both times!

 

[Smokymance]

Yeah mine is pretty loud w the catless LTs, magnaflow muffler and the 2300...might have to corsa it...

 

[DWebPro]

All magnaflows are straigh thru, you just need to get the appropriate 3 or 3.5" tubing depending on your engine...i believe the 5.3 has the 3"?

I have the 3.5" on my 6.2 w a blower...she does well...headers will really give you some gains w a blower.

Got it! I am leaning towards the magnaflow 12259.

Yes, Justin's truck has the Doug Thorley Tri Ys on it with the TVS1900.

long or short headers?

 

[JennaBear]

Got it! I am leaning towards the magnaflow 12259.

long or short headers?

The Doug Thorleys are kinda like midlengths, but longer . They perform just as good as LTs and are listed as LTs by DT.

Hopefully that makes sense...

 

[Smokymance]

The Doug Thorleys are kinda like midlengths, but longer . They perform just as good as LTs and are listed as LTs by DT.

Hopefully that makes sense...

dont they fit stock exhaust downpipes as well?

 

[JennaBear]

No, there is no mid or long tube header that can fit stock y-pipe. The DTs come with their own y pipe.

 

[Timmy]

Bought another one and had it tinted.

 

[63Blackseries]

Speaking of headers anyone know if the American racing long tube headers with high flow cats go well with the 5.3? performance wise.

 

[THE YETI]

Speaking of headers anyone know if the American racing long tube headers with high flow cats go well with the 5.3? performance wise.

Those are one of the best options right there.

I had stainless works with an off-road 3" Y-pipe and on a F/I Silverado 5.3 and it screamed.