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#91013102
Muffler Inserts for 3.5 x 20 Inch Header Collector Extensions
- Designed to slip inside extensions
- Unique baffle system wrapped with fiberglass gives headers street legal performance-not legal in California
- Fits 3 1/2" only
$54.99
/pair
In Stock
Quantity
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Product Summary
Universal Fit, 7.00" Overall Length, Steel, Natural
- Designed to slip inside extensions
- Unique baffle system wrapped with fiberglass gives headers street legal performance-not legal in California
- Fits 3 1/2" only
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Return PolicySpeedway Motors 91013102 Details
Speedway Motors 91013102 Details
Designed to slip inside extensions. Unique baffle system wrapped with fiberglass gives headers street legal performance.
Speedway Motors 91013102 Specifications
Speedway Motors 91013102 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 91013102 |
| Brand | Speedway Motors |
| GENERAL | |
| Overall Length | 7.00" |
| Outside Diameter | 3.35" |
| Inside Diameter | 1.90" |
| Material Type | Steel |
| Finish | Natural |
| Sold in Quantity | Pair |
Ratings & Reviews
4.6
63 Reviews
The product, a muffler, is highly praised by customers for its quality, practicality, excellent fit, and for significantly reducing noise levels. Users appreciated its ease of installation and the great sound it produces, comparing it favorably to competitor products. While a couple of customers encountered minor fitting adjustments, they collectively agreed the product achieved its purpose superbly, being described as perfect for a variety of cars including hot rods, T-Buckets, roadsters and more. A few customers mentioned they would opt for this product for their next build, reflecting its reliability. However, a small number of users noted the product didn't reduce noise as much as hoped.
Ratings & Reviews
4.6
63 Reviews
The product, a muffler, is highly praised by customers for its quality, practicality, excellent fit, and for significantly reducing noise levels. Users appreciated its ease of installation and the great sound it produces, comparing it favorably to competitor products. While a couple of customers encountered minor fitting adjustments, they collectively agreed the product achieved its purpose superbly, being described as perfect for a variety of cars including hot rods, T-Buckets, roadsters and more. A few customers mentioned they would opt for this product for their next build, reflecting its reliability. However, a small number of users noted the product didn't reduce noise as much as hoped.
4.6
63 reviews
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49
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1
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Most Liked Positive Review
5.0
Pleasantly surprised!
When I received these inserts, I really didn't think they would cut the sound much. Boy, was I surprised! They sound mellow, like glass packs should, while my T-bucket still retains the exhaust appeal. I had to make an installation tool from a pice of 3" PVC pipe to drive the inserts into the extensions. This made the install simple. Great product, great price.
Most Liked Negative Review
1.0
Very poor features.
I had to call Speedway tech support to determine which direction the muffler goes in. No instructions within the shipping box. Tech support said it could be installed in either direction. I tried both directions, made no reduction in db noise. I do not recommend this product at all. $39.99 x 2 each. Waste of time and money.
Filter by Ratings
The mufflers are perfect
5.0
9 months ago
GEM
Fla
Verified
I was looking to quiet down the T bucket. I was surprised how great they sound. Thanks
Would Recommend
Quality is spot on.
5.0
a year ago
Red
Beverly ma
Verified
For my 3 window 1932 Ford Coupe
Would Recommend
Good product
5.0
a year ago
Zeke
Vista Ca.
Verified
Worked like it should. Did quiet down my exhaust
Would Recommend
Good product
5.0
a year ago
Zeke
Vista Ca.
Verified
They did quiet my headers down some
Would Recommend
Baffles
5.0
2 years ago
Jc
Breese il
Verified
They fit and sound great
Would Recommend
Good product but extremely slow shipping
5.0
2 years ago
MM
Calif
Verified
Muffler inserts sounded great once I finally received them. Took forever with the shipping company they used. Was promised my parts on the 29th and didn't receive them until mid day on the 31st. Took 4 days to come from Arizona to Calif.
Would Recommend
Works exactly as I wanted.
5.0
2 years ago
3nails
Carlsbad NM
Verified
Fits perfectly into the new 20" extensions. Perfect muffle. Not too loud, but not too quiet. Just where I wanted.
Would Recommend
They ONLY INSTALL ONE WAY!
5.0
2 years ago
GearHeadz Garage USA
Florida
Dont pay attention to any of the reviews regarding installation instructions. These only go in one way and you cant screw this up. If you do its time to buy electric. Quick install, still keeps a great tone, but dont expect Cadillac Quiet. Its for Hot Rods
Would Recommend
yes
4.0
3 years ago
ken
canada
Verified
nice product
Would Recommend
Great product!
5.0
3 years ago
BossFordDriver
Omaha, Nebraska
Verified
I have a Model T speedster with a 3-1/2" exhaust pipe. I was looking for a way to put a muffler inside the pipe so it couldn't be seen. I ran across these insert mufflers and they worked great. Saved a lot of fabrication time and effort.
Would Recommend
Showing 10 of 63 reviews
Questions & Answers
Questions & Answers
15 Questions • 14 Answers
Will these work with part #91013379?
by Mike
• 7 years ago
1 answer
View Answer
I have these in 20" extension pipes, can I add a second set or do something to make it quieter?
by Mike
• 7 years ago
4 answers
View Answers
How far in should these mufflers be pushed into the pipe, being they're 7" and my pipes are 20"? :o)
by hotrodguy
• 9 years ago
1 answer
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Does the wrapping that is held on with the tape that comes on these stay there when you put these mufflers in the extensions?
by csmith
• 10 years ago
1 answer
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what diam. are these?
by cw
• 10 years ago
1 answer
View Answer
Can the Muffers For Extensions Be cut Shorter to fit The Auger style not workihg well for the weld I had to do.
by HaulZit
• 12 years ago
1 answer
View Answer
lake style exhaust mufflers I want to install Lake style exhaust #9300550H on my Roadster but i'm having a problem finding mufflers. I don't want to run open headers and feel some back pressure is important as well. Will this muffler work and if not do you have any suggestions? Thank you, Frank
by limo44
• 12 years ago
1 answer
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How long are these baffles?
by TexasT
• 12 years ago
1 answer
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Which end goes in first? Which end goes in first?
by Bill
• 13 years ago
2 answers
View Answers
Would it be a good idea to weld them in?
by Dale
• 14 years ago
1 answer
View Answer
10 of 15 questions shown