• Mac

Mac 4-into-1 Chrome Megaphone Exhaust System - 001-2601

  • Part #: 25508
  • Manufacturer Part #: 001-2601
  • MSRP Price: $377.95
  • Our Price: $340.16 *
You Save:
$37.79 (10%)
1 on Hand
  • Add to Cart
  • Add to Wish List/Gift Registry

*Oversize fee of $10.00 applies. (details)

25508
Low Price Guarantee
No Hassle Returns

Overview of Mac 4-into-1 Chrome Megaphone Exhaust System - 001-2601

  • MAC is dedicated to building products that meet strict quality standards. They follow exacting guidelines during manufacturing in order to insure that you receive a quality, reliable product every time
  • Economical replacement systems for 69 thru late 80s in-line fours and Honda V-fours
  • High performance, lightweight and lots of ground clearance
  • Does not block centerstand, oil filter or drain plug access; and features removable baffles
  • Carburetor re-jetting may be desired for best performance


Not all products are legal for sale or use on pollution controlled vehicles. Check your local laws and the manufacturers information.

Installation of a new exhaust system may change your motorcycles fuel-air mixture. Please consult the exhaust manufacturer directly with questions regarding any modifications that may be made during, or after, installing their product. If a jet kit or Power Commander is recommended, see the Intake/Fuel section.

Exhaust discoloration (bluing) is caused by engine conditions such as cam timing, fuel-air mixture, operating temperature, etc. It is not the result of defective manufacturing, therefore is not covered by any warranty. See Chems/Lubes section for products to help remove or prevent exhaust discoloration.

Specs

Finish Chrome
Style Megaphone Muffler
Type 4-Into-1 System
Units Each
Weight 16.81 lbs

Specs for Mac 4-into-1 Chrome Megaphone Exhaust System - 001-2601

Finish Chrome
Style Megaphone Muffler
Type 4-Into-1 System
Units Each
Weight 16.81 lbs

Fitment for Mac 4-into-1 Chrome Megaphone Exhaust System - 001-2601

Part 25508 fits the following machines

See if this part fits your ride

Honda
1983 Honda CB1000C Custom
1983 Honda CB1100F
1982 Honda CB750C Custom
1981 Honda CB750C Custom
1980 Honda CB750C Custom
1982 Honda CB750F Super Sport
1981 Honda CB750F Super Sport
1980 Honda CB750F Super Sport
1979 Honda CB750F Super Sport
1982 Honda CB750K
1981 Honda CB750K
1980 Honda CB750K
1979 Honda CB750K
1983 Honda CB750SC Nighthawk
1982 Honda CB750SC Nighthawk
1982 Honda CB900C Custom
1981 Honda CB900C Custom
1980 Honda CB900C Custom
1982 Honda CB900F Super Sport
1981 Honda CB900F Super Sport

Reviews for Mac 4-into-1 Chrome Megaphone Exhaust System - 001-2601

out of 9 reviews.

8 out of 9 (89%) customers would recommend this to a friend.

5 Stars
5
4 Stars
3
3 Stars
1
2 Stars
0
1 Stars
0
Fitment:
Sound: Very Loud
soft loud
Finish:
Performance:
Write a Review

Where's the Beef???

September 7, 2012

I really wanted a Performance Header that I could wrap and use any muffler I want. I can do that still. This muffler is a little whiney. Not Beefy! I'm gonna stick a Cherry Bomb on this Header!!! Very Shiny for sure! Nice upgrade. Still doing power/speed tests. I'm getting ready to Pod and Jet! Had to lift the front of the engine to wiggle the tabs into place. Not that hard to install. Yes, you can do it.

I would recommend this item to a friend.
Fitment:
Sound: Very Soft
soft loud
Finish:
Performance:
By: from Oregonia

Was this review helpful to you?

Yes
No

Mac 4 into 1 for Honda CB 750K

July 9, 2012

Shipping was super fast! It was vary easy to install. One the old exhaust was off the new one was on in less than 15 minutes!

I would recommend this item to a friend.
Fitment:
Sound: Soft
soft loud
Finish:
Performance:
By: from Austin,Texas

Was this review helpful to you?

Yes
No

GS1100ESD

February 27, 2012

Fit was good. There was rubbing on the clamp against my center stand. Fixed it by clamping higher up on the muffler Sound is loud. A little too loud for my taste. I'd prefer stock noise level. Finish was almost perfect. Missed spots of chrome on welds. Overall, a very good product. I really liked that the headers allow room for when performing an oil filter change.

I would recommend this item to a friend.
Fitment:
Sound: Loud
soft loud
Finish:
Performance:
By: from Daly City, CA

Was this review helpful to you?

Yes
No

Overall really solid system

June 9, 2011

Installed on a '76 Honda CB550 and it went on fairly easy, and the finish does look really nice! Only gripes so far is that the center stand bracket didn't really work out. Which wasn't a huge problem because with the old 4 into 4 system gone it kinda looked out of place. Though on my bike it is easy to just slide it back on whenever I need to service it.The finish around the collector welds looks like it might flash rust if it were to get caught in some rain. The sound of the exhaust is great though! Makes my old honda sound like a sport bike. It's definitely louder than stock on acceleration but usually mellows out at cruising speeds. I'm pretty pleased with it overall, definitely cleaned up the look of the bike!

I would recommend this item to a friend.
Fitment:
Sound: A Little Loud
soft loud
Finish:
Performance:
By: from Atlanta, Ga

Was this review helpful to you?

Yes
No

REALLY NICE PIPES!!!

August 27, 2010

these pipes are loud. even with baffle there loud. i'm planning to take it out but it kinda sounds good with it in there. it also has a wicked sound over 3500 rpm. I LOVE THEM

I would recommend this item to a friend.
Fitment:
Sound: Very Loud
soft loud
Finish:
Performance:
By: from concord, CA

Was this review helpful to you?

Yes
No

poor quality

July 3, 2010

Fit great on my kz650, bike runs better and feels a bit faster. Sounds a bit better too. Quality is awful though, welds began to rust a week after installation the first time they got some rain on them.

I wouldn't recommend this item to a friend.
Fitment:
Finish:
Performance:
By: from regina, saskatchewan

Was this review helpful to you?

Yes
No

Great System

May 16, 2010

I bought this system for my 1983 CB650SC Nighthawk the other day and I just love it !! My bike runs so much better and looks great too.

I would recommend this item to a friend.
Fitment:
Finish:
Performance:
By: from Newbury Park,Ca

Was this review helpful to you?

Yes
No

hard to find

April 19, 2010

thank you for having a 4 to 1 system. System is hard to find. looks great - sounds even better Thanks much

I would recommend this item to a friend.
Fitment:
Finish:
Performance:
By: from chicago,illinois

Was this review helpful to you?

Yes
No