McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams
Phone

800.979.0122

Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
Speedway Motors Logo
America's Oldest Speed Shop ®

Search

Header Reducer Kit, 2-1/2 to 2 Inch

SAME DAY SHIPPING! Most orders ship within 24 hours.

Specs
Centerline of Holes:
3.07
Material Type:
Steel
Overall Length:
3.85
Sold in Quantity:
Pair
Finish:
Natural
Flange Thickness:
.25
Collector Diameter :
2.50
Gasket(s) Included:
Yes
Hardware Included:
Yes
Garage Sale:
No
Header Reducer Kit, 2-1/2 to 2 Inch

Click image to enlarge

Please NOTE the following about this product:

  • This item is sold as a pair.

Details

Reviews

Q & A

What's in the Box

Each mild steel reducer comes with a welded-on 3-bolt flange, gaskets and bolts.

Customer Reviews

Rated 5 out of 5 by 1 reviewers.
RATING BREAKDOWN
1 reviews
5 Stars
1
4 Stars
0
3 Stars
0
2 Stars
0
1 Star
0
RECOMMEND THIS PRODUCT:

remfab
ct
Product Rating

no one will beat this price and quality

January 25, 2010
header/exhaust reducer
Pros:
  • Includes bolts and gasket
Yes, I recommend this product.
Full Size Image

Was this review helpful? 0 0

Page 1 of 1

Product Q&A

4 questions : 4 answers

will these fit a factory 350 header

1 answers
21Chevy
March 02, 2015

will these fit a factory 350 header

Answers

March 02, 2015
EricM
These will fit headers with 2 1/2" collectors but they will not fit stock Chevy exhaust manifolds.

Will these mount on my 2 1/2 exhaush cut outs with the three hole mounting flang

1 answers
Dan
Floyds Knobs IN
May 29, 2011

Will these mount on my 2 1/2 exhaush cut outs with the three hole mounting flang

Answers

June 02, 2011
John
These reducers work on most 2 ½” collectors and flanges utilizing the 3 bolt configuration and reduce the pipe size to 2” O.D. They include the gaskets, bolts, washers, and nuts.

hi what is the measurement from hole to hole thanks bill

1 answers
bill
new hampshire
December 21, 2011

hi what is the measurement from hole to hole thanks bill

Answers

December 21, 2011
Jason
Overall Length : 3.85 Inches (in) Collector Diameter : 2.50 Inches (in) Outlet Size : 2.00 Inches (in) Centerline of Holes : 3.07 Inches (in) Flange thickness : .25 Inches (in)

Will these flangs fit the stock early model Chevy Ram Horn exhaust?

1 answers
Peter
Sun Valley, Ca. 91352
April 12, 2011

Will these flangs fit the stock early model Chevy Ram Horn exhaust?

Answers

April 14, 2011
Shane
The header reducer 2 1/2" part # 91013751 will fit the exhaust manifolds. I have seen some people even run the donut style gaskets with these for a better seal.
Page 1 of 1

You may also be interested in:

Stainless Header Reducer Kit, 2-1/2 to 2 Inch
(Part #91013755)
                        Each stainless steel reducer comes with a welded-on 3-bolt flange, gaskets and bolts.
                    
Garage Sale - Header Reducer Kit, 2-1/2 to 2-1/4 Inch
(Part #91013751.GS)
                        

This item is garage sale priced because it's not a regularly inventoried item.  No hardware included.

 

**NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS**

 

These are the header reducers you need to adapt your 2-1/2" outlet headers to 2-1/4" exhaust tubing. 

 

AHC coated mild steel.  5/16" thick flanges.  Includes gaskets.   

Copper Collector Exhaust Gaskets, 2-1/2 Inch
(Part #91013706)
                        These copper collector gaskets are embossed port ridge for a perfect seal. Cure the "leaky header blues" with these copper exhaust gaskets. Die cut and dead soft. Constructed of the finest .041 copper material and will seal where most gaskets fail. Include stainless steel fasteners. Reusable.
                    
Collector Gasket - 2 1/2 Inch Inside Diameter
(Part #91013702)
                        Collector gaskets available in several sizes.
                    
Speedway Extreme Gaskets, 2-1/2 Inch Collector Gaskets
(Part #91013540)
                        
  • Reusable triple-layer gasket
  • Stainless steel with a heat-resistant, rubber-based inner core
  • 0.085” thick, ultra pliable
  • Easily conforms to surface irregularities to create a tight, leak-proof seal