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GMC S15 4-1 Headers 

When top end power is all that matters, GMC S15 4-1 headers will do the job nicely. That being said, there is usually little difference at low RPMs between 4-1 and 4-2-1 headers, so it’s just a matter of deciding whether you want more mid-range or more top end power when you’re pegging the needle.


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Fits: 1973-87 GM Pick Up

PART# THY-364Y-S-C

Tube Grouping: 4-1
Finish: Ceramic Coated
Retail: $1,483.98
$1,291.06


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GMC S15 4-1 Headers 

When top end power is all that matters, GMC S15 4-1 headers will do the job nicely. That being said, there is usually little difference at low RPMs between 4-1 and 4-2-1 headers, so it’s just a matter of deciding whether you want more mid-range or more top end power when you’re pegging the needle.


Choose Your Vehicle:


Shop GMC S15 4-1 Headers by Brand

1 - 1 of 1
Sort by:




Fits: 1973-87 GM Pick Up

PART# THY-364Y-S-C

Tube Grouping: 4-1
Finish: Ceramic Coated
Retail: $1,483.98
$1,291.06


Free Shipping!


Previous1Next

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