Love It Or Hate It - Deceleration Pop - Is It Bad?

Myths & Facts About Harley Exhaust. Decel Pop- Is it Bad for your Harley?
Is it Indicative of a Bad Tune? Find out Why Your Harley Has Decel Pop.
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The DK Team

[carloconcha]

these guys are awesome there are no other channels that even compare to what ive learned watching them.

[ronlynch]

I love the pop it gives that Harley Hot Rod sound. 😎👍🇨🇦

[itisaporsche]

Glad to hear deceleration pop does not harm bike. My CVO Breakout with V&H Big Radius pipes had loud decel pop; I had a Harley dealer look at it because it was pretty loud. They tuned it and it still popped so I'm not going to worry about it anymore.

[unclejake]

Thanks guys. Now I like my decel pop. 2009 XL1200C Sportster.

[evervigilant]

DK Customs is phenomenal. Love the content and knowledge you are imparting on us.

[connorberube]

Thank you for sharing-
With my latest 3.0 TTS tune, against advise, I made a ‘test tune’ to experiment and turned off my decel enleanment and limited my accel enrichment. (After full and accurate MAP/RPM mapping)
Now it’s a very mellow pop with tempo- much more acoustically pleasing- will monitor for negative effects

[manny]

Thanks guys. My Harley dealer recently upgraded my '23 Fatboy 114 with a higher flow air filter, TAB zombie exhaust and Dynojet Power Vision tuner. Yes it has a LOT of deceleration pop! Thanks for explaining what the "pop" is all about. My fat boy is back at the dealer having an S&S 475 cam and an S&S intake manifold installed now. Can't wait to hear an even bigger pop.

[rodneyhirsch]

I've bought 4 Harley Davidson from Boise Idaho. 0 have ever been in shop. You are always right everyone else is wrong. I run your inserts and oil filter, take lift on flht. Noticeable power increase, especially from filter. Below 1000 rpm the stock was better. Do a lot of ride like a pro parking lot maneuvering. Still will idle through the course no problems. Not tuned, runs great.

[broke]

I just removed the quiet baffles from a bike I bought second hand with V&H pipes on it and it pops and crackles literally every single time I let off the throttle haha. It actually was doing it still with the baffles in it just wasn't as noticeable because the baffles were doing their job. I have taken off all the fibreglass on the baffles and plan to try reinstall those baffles in an attempt to find a spot with good volume and seeing if the added restriction dulls some of the pops. If not then I guess I might have to see about getting the tune looked at. It has been tuned previously so it's possible it's running lean or it was tuned to pop by the previous owner. Bike is a Yamaha Bolt 950. Great video guys!

[jayrad]

Love the pop. Its just those last dinosaurs burning!..give me fuel give me fire!

[johnlennon]

Had a V&H Pro pipe when I bought my 05 RK 10 years ago. Hated the pop and the sound, so made my own pipes, twice. First set were shorty ' dumps' that were loud and popped. Now have 1 3/4" long drags with homemade baffles and 'lollipops ' i made myself. No more pop and i never used a tuner. Plugs are proper color and bike runs fine, plus i like the sound. Reminds me a little of my old ironhead with straight through drag pipes.

[edwardallan]

My 450 Rebel is perfectly synced & tuned. Both pipes have a light staccato decel pop & crackle. I love it.

[marcusjamesOG]

I have a stock 2021 Roadglide, I never noticed any decel pop until I added slip ons and screaming eagle air cleaner. I love it

[LonesomeNomad]

My 93 FLHS has decel explosions. Good video guys

[wiseman]

Ty gentlemen! Now I love my decel pop!😊

[southernstyle]

Love me some decel pop. It's Jake brakes for a bike. ( sound wise)

[N]

The "pop" is unburnt fuel being burnt after the exhaust valve. That's a given. There is one obvious omission: PAIR. PAIR introduces fresh air directly into the exhaust after the exhaust valve. This introduction is (obviously) deliberate and is for emission control. I believe PAIR was introduce on the Japanese bikes (I have no research to that effect). You are correct, the "pop" is not a damaging thing, and as yourselves, I do really like that crack. Bear in mind, that by running the engine richer with a PAIR system, there may be excessive "pops". PAIR/"pop"/blanking PAIR - has absolutely no effect on engine performance (4-stroke) and could possibly negatively affect any cat/conv down the line.

Thanks for a great video production.

[supremo]

This is the best explanation I've seen about decel pop. Thankyou guys.🙏

[TimothyCrowson-ehny]

Finally an answer and an explanation about the pop I get! Thanks

[Roadglide]

I just got bassani exhaust, screaming eagle air cleaner on my road glide, tuned at harley. Has decel pop I love it. As long as it's not hurting anything I like it. It's fast