gmc sierra 5.3L flo-pro exhaust

GMC Sierra Regular Cab Stepside with 5.3L V8
AirAide Cold Air Intake
AirAide powerAide Throttle Body Spacer
Edelbrock Ceramic Coated Shorty Headers
Dual Exhaust, No Cats, Flo-Pro mufflers

Category:

Autos & Vehicles

Tags:

• GMC
• Sierra
• 5.3L
• Vortec
• flo-pro
• flo
• pro
• exhaust
• revs
• headers
• edelbrock
• airaide
• cold
• air
• intake
• poweraide
• dual
• mufflers

[SpeedRacer942]

so i was lookin at headers for my 99 5.3, would you recommend the shortys or should i go with long tubes?

[bduchch]

depends on the rest of you plans for exhaust. i went with the shorties because i already had the rest of the exhaust done and they bolted right in. if you dont have custom exhaust done yet and you want free flowing exhaust with no cats go with long tubes. if you want something that bolts right in go with shorties. also depends on your budget. long tubes will be allot more. and dont cheap out on headers, go with a good name brand, it will make your swap allot easier.

[SpeedRacer942]

ok. how do you eliminate the cats with the long tubes? do the sensors just go into the headers or what?

[bduchch]

youd have to ask someone at an exhaust shop thats done long tubes on those trucks. i havnt done any.

[billabooboo]

Sweet Dude... sometimes advice from a total stranger helps. I think I know where my next 800 or so bucks is going to go.

Thanks again!

[bduchch]

if your goin with headers you definately gonna be lookin at payin more than that depending on what the labour rate is for custom exhaust...

[zero3966]

i got this exhaust about 2 months ago for buyers its great when u get wear it gives a great bark i have no cats with mine 4.6 v8 f 150 1999 and gives great power increase!

[EricTehRedneck]

nice truck man looks like mine

[ROBBY639]

@SpeedRacer942 the cats are in the mid-pipe...so, when u get longtubes you have to buy a mid-pipe made to fit the LT's..i had 2 cats taken out, and had a custom x-pipe made...you will see a night and days difference in longtubes, and a little in shortys, but enough to tell...but i just switched from LT's to shortys because of technical problems, and the shortys are louder....but dont give but about half as mach power as the LT'S....and i just looked at the date and feel like a retard, haha......

[ksk012]

i have a 5.3L V8 vortec and my truck halls way more ass then that lil junk!!! haha

[TheNeckasaurus]

@SpeedRacer942 I know for my 4.8l shorties did absolutely nothing, once i put some LT's on its woke it up.

[FLOPROPerformance]

You can now go to our all new website for more details and exciting new products!

[curtknows101]

There are o2 sensors after the cats on my 06 gmc 4.8 and i was wondering if and what you mite tell me, if thats a problem, when the cats are scrapped, does the computer need retuned???? any help will be much appreciated!!!!!!,

[TheMastermechanic100]

That thing is gutless it just sounds loud

[MrChriskenser]

That's great but it ain't no flomaster40 but I love it dude nice truck

[dova91]

what kinda flo pro muffler do you have? my buddy had some one his 89 stepside 5.7 and they sounded by-far, best muffler ive ever heard, but we didnt know what kinda muffler they were when we checked the flopro site