Topic: Cycle Magazine compares aftermarket pipes for the CB750..

[CycleRanger]

....in May of 1972.    

Cycle Magazine article comparing Jardine, Triple A, Action Fours, Race Crafters, and Dunstall pipes.
Four or five guys out in the parking lot making some real science!
The best part is the photos of the bike laying on its side on the pavement.

[72 yellow]

Interesting reading.  Thanks for posting.

[Wobbly]

Yes, awesome. Thank you for posting.

[Powderman]

For those who may not know, The RaceCrafters system is what became Kerker.

[Cougars750F0]

Love the price!

[thelowmax]

I recently paid $250 (free shipping) for a NOS Jardine 4 into 2 system. I thought I was getting a screaming deal.

[MRieck]

"We need a bottom shot.....push the bike over". Ah.....the good old days.

[Tim2005]

Yes, good old days.  "the most computer controlled bike ever"  - things have moved on more since that too...

[thelowmax]

Here's my 78k with Jardine crossover 4 into 2