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SP Concepts Big Bore 4.5 for Harley Davidson
SP Concepts Big Bore 4.5 for Harley Davidson
SP Concepts Big Bore 4.5 for Harley Davidson
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SP Concepts Big Bore 4.5 for Harley Davidson

Marsoni M251S
Sale price$575.00
Pay 4 payments of $143.75 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
SP Concepts Big Bore 4.5 for Harley Davidson4. 5 HIGH FLOW PERFORMANCE ROLLED CONE MUFFLER WITH STEPPED BAFFLE FROM 2 TO 2 INCHES. INCREASES BOTTOM TO MID RANGE TORQUE AND HORSEPOWER ON ALL MOTORS. TUNED PROPERLY CAN ACCOMMODATE 88" TO 143". 065 STAINLESS STEEL HEADERS, STEPPED FROM 1 TO 1 7 8 TO 2 AT THE COLLECTOR HAND TIG WELDED FROM TOP TO BOTTOM MACHINED STAINLESS STEEL HEADER COLLARS 18MM O2 BUNGS WITH 12MM ADAPTERS, ALLOWS FOR STOCK OR AUTOTUNE SENSORS COMPLETE HARDWARE KIT WITH
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 1634 reviews
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Product Reviews
D
Verified Purchase
Daniel C.
New York, US
★★★★★ 5
Great quality products
Used this product to make a new hot and ground on my 2001 Ford f450 with 2 batteries. Alot cheaper than factory!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 17, 2025
T
Verified Purchase
Todd Levesque
Chelsea, US
★★★★★ 5
Purchase a very good set or at least the correct cutters for this wire. I’ll make your life hell .
Glad I bought it when I did. Copper has gone way up. And this is full core copper. Place my copper ends on the stuff works great. Using it on a solar battery bank.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 9, 2026
N
Verified Purchase
Norman
Lowell, US
★★★★★ 4
Wire
It's good but it's aluminum
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 22, 2024
M
Verified Purchase
mike tavalez
West Palm Beach, US
★★★★★ 5
Works good
Great spare spool for RV application amd home build inverter setup
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 5, 2026
A
Verified Purchase
Avary Jones
Grantham, US
★★★★★ 5
Good current wire
It works well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 20, 2025

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