Contact
Andy's Parts Smarts
Cart
Hello, Sign In!
GMC S15 4-2-1 Headers
Our GMC S15 tri-Y headers, also known as 4-2-1 headers, merge from four primary tubes down to two, then down to a single collector. They are an excellent choice for mid to upper range power, with some differences depending on the manufacturer. Popular for street and autocross vehicles!
Select Your Vehicle
Shop GMC S15 4-2-1 Headers by Year
Shop GMC S15 4-2-1 Headers by Brand
1 - 7 of 7
Sort by:
Tube Grouping: 4-2-1
Finish: Ceramic Coated
Retail: $2,248.59
$1,956.27
Tube Grouping: 4-2-1
Finish: Ceramic Coated
Retail: $2,266.04
$1,971.45
Tube Grouping: 4-2-1
Finish: Ceramic Coated
Retail: $2,123.52
$1,847.46
Tube Grouping: 4-2-1
Finish: Ceramic Coated
Retail: $2,228.24
$1,938.57
Tube Grouping: 4-2-1
Finish: Ceramic Coated
Retail: $2,094.41
$1,822.14
Tube Grouping: 4-2-1
Finish: Ceramic Coated
Retail: $2,318.43
$2,017.03
Tube Grouping: 4-2-1
Finish: Ceramic Coated
Retail: $2,100.25
$1,827.22
| Previous | 1 | Next |
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Not able to find what you are looking for?
Fits Small Block Chevy Blazer S10 S15 2WD 350 V8 GMC Engine Swap SS Headers
New Engine Swap SS Headers Fits Small Block Chevy Blazer S10 S15 2WD 350 V8 GMC
Fits Small Block Chevy Blazer S10 S15 2WD 350 V8 GMC Engine Swap SS Headers
Engine Swap SS Headers For Small Block Chevy Blazer S10 S15 2WD 350 V8 GMC
For Chevrolet Blazer S10 S15 GMC SBC 283-400 V8 Exhaust Headers Black Steel
New Engine Swap SS Headers Fits Small Block Chevy Blazer S10 S15 2WD 350 V8 GMC
You Have Selected
-
Tube Grouping: 4-2-1
[ Remove ]
Filter Your Results
Category 
-
Headers(7)
Brand
-
Doug Thorley(7)
Finish
-
Ceramic Coated (7)
Tube Grouping
-
4-2-1 (7)
Price
-
$500 and Over(7)
GMC S15 4-2-1 Headers
Our GMC S15 tri-Y headers, also known as 4-2-1 headers, merge from four primary tubes down to two, then down to a single collector. They are an excellent choice for mid to upper range power, with some differences depending on the manufacturer. Popular for street and autocross vehicles!
Choose Your Vehicle:
Shop GMC S15 4-2-1 Headers by Year
Shop GMC S15 4-2-1 Headers by Brand
1 - 7 of 7
Sort by:
Tube Grouping: 4-2-1
Finish: Ceramic Coated
Retail: $2,248.59
$1,956.27
Tube Grouping: 4-2-1
Finish: Ceramic Coated
Retail: $2,266.04
$1,971.45
Tube Grouping: 4-2-1
Finish: Ceramic Coated
Retail: $2,123.52
$1,847.46
Tube Grouping: 4-2-1
Finish: Ceramic Coated
Retail: $2,228.24
$1,938.57
Tube Grouping: 4-2-1
Finish: Ceramic Coated
Retail: $2,094.41
$1,822.14
Tube Grouping: 4-2-1
Finish: Ceramic Coated
Retail: $2,318.43
$2,017.03
Tube Grouping: 4-2-1
Finish: Ceramic Coated
Retail: $2,100.25
$1,827.22
| Previous | 1 | Next |
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Not able to find what you are looking for?
Fits Small Block Chevy Blazer S10 S15 2WD 350 V8 GMC Engine Swap SS Headers
New Engine Swap SS Headers Fits Small Block Chevy Blazer S10 S15 2WD 350 V8 GMC
Fits Small Block Chevy Blazer S10 S15 2WD 350 V8 GMC Engine Swap SS Headers
Engine Swap SS Headers For Small Block Chevy Blazer S10 S15 2WD 350 V8 GMC
For Chevrolet Blazer S10 S15 GMC SBC 283-400 V8 Exhaust Headers Black Steel
New Engine Swap SS Headers Fits Small Block Chevy Blazer S10 S15 2WD 350 V8 GMC
