how much do slip on's affect performance?

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Dec 22, 2019 | 06:08 PM

#11

KCFLHRC

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Joined: Feb 2010

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From: Jayhawk Country

Quote:

Originally Posted by Durango Dave

Slip-ons are a placebo for performance and that's about it. You hear the roar of your engine and you think it's more powerful.

That would really depend on the bike. A Harley, yeah, maybe so. I have seen guys flogging their Harley's and are definitely more show than go. Dyno results on other bikes say different. Gains of 5 to 10 hp with a good slip on are very realistic.

Dec 22, 2019 | 07:38 PM

#12

cajun1957a

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How does everyone feel about 4" street cannons on an 88 c.i. with true duals.

randy

Dec 22, 2019 | 09:45 PM

#13

rhuff

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Joined: Jul 2007

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From: 48.067222,12.863611

Quote:

Originally Posted by cajun1957a

How does everyone feel about 4" street cannons on an 88 c.i. with true duals.

randy

Randy,

Start your own thread.

Ryan

Dec 23, 2019 | 07:01 AM

#14

cajun1957a

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Ryan, my query was to the original post as to performance differentials with slip-ons. Given that Rhinehart, RCX , Cobra etc were mentioned, I was wondering if anyone noticed a change with the Street Cannons. Sorry.

Randy

Dec 23, 2019 | 07:16 AM

#15

Hoginedgewood

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Joined: Jul 2017

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From: Ky

Does fuel moto show performance numbers with the maps they provide? That's where id look for results. I'm guessing little different.

Dec 23, 2019 | 07:27 AM

#16

Germansheperd

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Joined: Dec 2019

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From: Ohio

Quote:

Originally Posted by langwilliams

I have a '14 street glide with CR 570 cams, fuel moto head pipe an power vision tuner. I currently have 4" RCX slip's on the bike. They look good an sound OK. I wouldn't mind a deeper sound an I plan on a dyno tune this spring so if I'm gonna change the now is the time....plus there's 2 sets for sale near me....a pair of 4.5" V&H high outputs an a set of 4.5" cobra power flo's. Would either exhaust perform any better than the CRX? I don't know how much you lose or gain with just a muffler change. any info is appreciated!

its pretty much the same thing in the car world 2-5 rwhp between stock and to the best/worst. With a bike it’s probably less. Like someone else stated its a placebo effect but you can get more noise.

Dec 23, 2019 | 09:28 AM

#17

internet troll

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Joined: Nov 2018

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From: Upstate NY

On a bike thats already had that kind of work done, slip on's alone will add/subtract 7-10 HP and maybe 2-3 ft lbs of torque. Not enough that you will notice a performance difference (seat of the pants) but the numbers will show if the bike gets a dyno run.

Dec 23, 2019 | 09:32 AM

#18

fuelmoto

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From: Little Chute, WI

Quote:

Originally Posted by langwilliams

For those interested here is an article from the FM University site related to mufflers & baffles with dyno charts > https://university.fuelmotousa.com/a...-twin-engines/

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Dec 23, 2019 | 09:55 AM

#19

Germansheperd

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From: Ohio

Quote:

Originally Posted by fuelmoto

For those interested here is an article from the FM University site related to mufflers & baffles with dyno charts > https://university.fuelmotousa.com/a...-twin-engines/

lol if you read this it will make people cry. Slip-on’s do virtually NOTHING and bigger cans can hurt in some aspects.