2003 GMC Sierra Cat-Back Exhausts
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Borla Cat-Back System 99-07 GMC Sierra 4.8L/5.3L V8 2+4WD AT/MT EC SB (Z-71) incl Classic (14824)
Borla Cat-Back System 99-07 GMC Sierra 4.8L/5.3L V8 2+4WD AT/MT EC SB (Z-71) incl Classic (14824)

Fits - 2003 GMC Sierra

Pipe Size: 3", 2.25"Tip Type: S RD RL ACTip Exit: split rearTip # 36Tip Dimensions: 4" RD x 14"
Our Price
$855.99
$958.99 (10.74% OFF)
Product Details
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Borla Cat-Back System 03-05 GMC Sierra 6.6L V8 2+4WD AT/MT 4DR CC LB (140116)
Borla Cat-Back System 03-05 GMC Sierra 6.6L V8 2+4WD AT/MT 4DR CC LB (140116)

Fits - 2003 GMC Sierra

Pipe Size: 4"Tip Type: S RD RL ACTip Exit: sideTip # 39Tip Dimensions: 5" RD x 14"
Our Price
$816.99
$914.99 (10.71% OFF)
Product Details
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Borla Cat-Back System 01-07 GMC Sierra Classic 6.0L/8.1L V8 HD 2+4WD CC SB (14959)
Borla Cat-Back System 01-07 GMC Sierra Classic 6.0L/8.1L V8 HD 2+4WD CC SB (14959)

Fits - 2003 GMC Sierra

Pipe Size: 3", 2.25"Tip Type: S RD RL ACTip Exit: split sideTip # 36Tip Dimensions: 4" RD x 14"
Our Price
$1020.99
$1142.99 (10.67% OFF)
Product Details
Add To Cart
Borla Cat-Back System 03-05 GMC Sierra 6.6L V8 2+4WD AT/MT 4DR EC SB (140117)
Borla Cat-Back System 03-05 GMC Sierra 6.6L V8 2+4WD AT/MT 4DR EC SB (140117)

Fits - 2003 GMC Sierra

Pipe Size: 4"Tip Type: S RD RL ACTip Exit: sideTip # 39Tip Dimensions: 5" RD x 14"
Our Price
$816.99
$914.99 (10.71% OFF)
Product Details
Add To Cart
Borla Cat-Back System 03-05 GMC Sierra 6.6L V8 2+4WD AT/MT 4DR CC SB (140097)
Borla Cat-Back System 03-05 GMC Sierra 6.6L V8 2+4WD AT/MT 4DR CC SB (140097)

Fits - 2003 GMC Sierra

Pipe Size: 4"Tip Type: S RD RL ACTip Exit: sideTip # 39Tip Dimensions: 3" RD x 7.5"
Our Price
$816.99
$914.99 (10.71% OFF)
Product Details
Add To Cart
Borla Cat-Back System 99-07 GMC Sierra 4.8L/5.3L V8 2+4WD AT/MT RC SB incl Classic (14818)
Borla Cat-Back System 99-07 GMC Sierra 4.8L/5.3L V8 2+4WD AT/MT RC SB incl Classic (14818)

Fits - 2003 GMC Sierra

Pipe Size: 3", 2.25"Tip Type: S RD RL ACTip Exit: split rearTip # 36Tip Dimensions: 4" RD x 14"
Our Price
$855.99
$958.99 (10.74% OFF)
Product Details
Add To Cart
Borla Cat-Back System 99-07 GMC Sierra 4.3L V6/4.8L/5.3L V8 2+4WD AT/MT EC SB incl Classic (140014)
Borla Cat-Back System 99-07 GMC Sierra 4.3L V6/4.8L/5.3L V8 2+4WD AT/MT EC SB incl Classic (140014)

Fits - 2003 GMC Sierra

Pipe Size: 3"Tip Type: S RD RL ACTip Exit: sideTip # 36Tip Dimensions: 4" RD x 14"
Our Price
$586.99
$656.99 (10.65% OFF)
Product Details
Add To Cart
Borla Cat-Back System 01-07 GMC Sierra 6.0L V8 (Incl HD) 2+4WD AT/MT 4DR CC SB incl Classi (140033)
Borla Cat-Back System 01-07 GMC Sierra 6.0L V8 (Incl HD) 2+4WD AT/MT 4DR CC SB incl Classi (140033)

Fits - 2003 GMC Sierra

Pipe Size: 2.75", 2.25"Tip Type: S RD RL ACTip Exit: split rearTip # 36Tip Dimensions: 4" RD x 14"
Our Price
$824.99
$923.99 (10.71% OFF)
Product Details
Add To Cart
Borla Cat-Back System 99-07 GMC Sierra 4.8L/5.3L V8 2+4WD AT/MT EC SB (Z-71) incl Classic (14825)
Borla Cat-Back System 99-07 GMC Sierra 4.8L/5.3L V8 2+4WD AT/MT EC SB (Z-71) incl Classic (14825)

Fits - 2003 GMC Sierra

Pipe Size: 3", 2.25"Tip Type: S RD RL ACTip Exit: split sideTip # 36Tip Dimensions: 4" RD x 12"
Our Price
$855.99
$958.99 (10.74% OFF)
Product Details
Add To Cart
Borla Cat-Back System 99-07 GMC Sierra 4.8L/5.3L V8 2+4WD AT/MT RC SB incl Classic (14940)
Borla Cat-Back System 99-07 GMC Sierra 4.8L/5.3L V8 2+4WD AT/MT RC SB incl Classic (14940)

Fits - 2003 GMC Sierra

Pipe Size: 3", 2.25"Tip Type: S RD RL ACTip Exit: split sideTip # 36Tip Dimensions: 4" RD x 12"
Our Price
$931.99
$1043.99 (10.73% OFF)
Product Details
Add To Cart
Borla Cat-Back System 01-07 GMC Sierra Classic 6.0L/8.1L V8 HD 2+4WD EC SB (14990)
Borla Cat-Back System 01-07 GMC Sierra Classic 6.0L/8.1L V8 HD 2+4WD EC SB (14990)

Fits - 2003 GMC Sierra

Pipe Size: 3", 2.25"Tip Type: S RD RL ACTip Exit: split sideTip # 36Tip Dimensions: 4" RD x 14"
Our Price
$1110.99
$1243.99 (10.69% OFF)
Product Details
Add To Cart
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Cat Back Exhaust

Featured Cat Back Exhausts Products


  When considering serious 2003 GMC Sierra cat back exhausts upgrades for their vehicles, many drivers focus on installing the most effective 2003 GMC Sierra cat back exhaust system. A catback exhaust is the portion of an exhaust setup that contains all the components from the rear of the catalytic converter on down. Finely tuned 2003 GMC Sierra cat back exhausts serve as excellent 2003 Sierra racing exhausts, and with all of the proper parts like universal mufflers and sleek tail pipes included, the setup can provide the sound and emissions flow a serious driver would want.

2003 GMC Sierra Cat Back Exhaust 2003 GMC Sierra Megan Racing Cat Back Exhaust 2003 GMC Sierra Cat-Back Exhausts 2003 GMC Sierra CatBack Exhausts


2003 GMC Sierra Catalytic converters are the starting points for 2003 GMC Sierra cat back exhaust upgrades, and for good reason. These 2003 GMC Sierra converters help to make emissions cleaner and less polluting, and can correct problems caused by unruly 2003 GMC Sierra car exhausts. While mufflers focus on sound control and 2003 GMC Sierra exhaust pipes and tips are often upgraded for their looks more than anything, entire 2003 GMC Sierra cat back exhaust system upgrades can really affect the whole vehicle in a positive way, making for a cleaner, better looking exhaust array.


  Chance Sitandon  -  (Kent,washington)
This straight pipe is very nice. I bought 1 myself for me 85 Corolla and it sounds really nice also. I don't use the silencer as much but besides that everythings nice. I'm 15 right now and I'm trying to get somewhere with my 85 Corolla that me dad loaned to me. They straight pipe I bought just killed it. Its really awesome!
  K Nguyen  -  (Wichita, KS)
i use to think it was retarded when people would drive around with there HID headlights on all of the time.... now i do it too LOLOL
  Pedro R.  -  (Long Beach, CA)
AWESOME KIT!
  Andrew L.  -  (Concord,Ontario)
I bought the prodrive-style front lip for the 02 wrx.Between order-complete to lip at my door was < 4 days. The product is legit and of decent quality. The packaging was great and the lip itself seems to fit really well. As cheesy as it sounds, I am glad I bought from ilovebodykits.
  Aaron B.  -  (New York, NY)
Thanks Ilovebodykits! I really like what I got!
  BerettaM9  -  (Kinney, TX)
If you have a newer vehicle, especially European, you have to spend a little extra money on one of these CANBUS kits. Ive been through several other types of HID kits and my lights would flicker, or one side wouldnt turn on, and I would get the warning light on my dash. As soon as I installed this kit, my problems were gone. I'm very happy with this kit - MUCH brighter than any of the other kits Id previously purchased.

Cat Back Exhaust, Performance Exhausts & more

44 reviews 4.5 out of 5 stars

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