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[Stgeg]

I just got the new 2015 Street Glide CVO and thinking of adding some real sound , so I want to replace my stocks headers with the new fullsac dx pipe and V&H high output mufflers and may be adding the TTS master tune and fullsac map, my question is,  is it ok to change the sock headers without putting the TTS tuner as the bike have only 160 mile on it , and I have been advised not to put  the TTS before the 1st 1000 mile.

Any issues if I didn't add the TTS and just replaced the stock header with the DX header?

[hd-dude]

DO NOT change the header and mufflers with putting a tune (TTS) in the bike at the same time. The engine will be excessively lean. Whoever advised you not to put the TTS on before 1K does not know what they are talking about. There is no danger in putting the tune in and making your bike run better!

[Stgeg]

DO NOT change the header and mufflers with putting a tune (TTS) in the bike at the same time. The engine will be excessively lean. Whoever advised you not to put the TTS on before 1K does not know what they are talking about. There is no danger in putting the tune in and making your bike run better!

Thank you HD-dude, I think you mean I should not change the header and mufflers WITHOUT putting a tune TTS to avoid running excessively lean , is this what you meant ?

[Stgeg]

Thank you HD-dude, I think you mean I should not change the header and mufflers WITHOUT putting a tune TTS to avoid running excessively lean , is this what you meant ?

Sorry , I forgot to mention that I have no plans to change the air filter since the CVO bikes come with SE high air flow filter

[deldago]

That is correct, the bike runs lean already because of EPA emissions. If you free up the exhaust that much it will be excessively lean and could do damage. I ran just the baffles for about 1000 miles but added the TTS as soon as I added the DX pipe. Now the bike sounds like a Harley and runs much cooler! You will be extremely happy with the results.

[Puma]

The bigger dealer in my area changes exhausts on bikes before selling them sometimes. But you MUST do the tune or at least a download whenever you put a better system on a bike, any bike.

[Ghost__Rider]

You won't like the VH highoutputs............they kill the bottom end. I put a set on and couldn't get them off fast enough. You'd be better off to go with Fullsac CVO cores. Just a suggestion.

[North Georgia Hawg]

You won't like the VH highoutputs............they kill the bottom end. I put a set on and couldn't get them off fast enough. You'd be better off to go with Fullsac CVO cores. Just a suggestion.

I would agree. Too little restriction kills low-end torque. Fullsac CVO cores are the way to go with the Fullsac DX pipe.

Ken

[FLSTFI Dave]

Last four new bikes in our house, two of mine and two of the wife's.  We ride the 56 miles home, on goes the Fullsac DX head pipe, the fullsac cores and the TTS tuner and map.  Do not do pipes and mufflers with out a TTS and map.

High out puts will hurt low end torque, even on a 110 inch motor.  Have see it proved on a dyne.  Fullsac 2.0 or 2.25 cores will make more torque.

[Stgeg]

Thank you All for the valuable advice , I agree that High output will heart the low end torque , I heard very good feedback about the fullsac 2" and 2.25" core baffles but I like deep mellow sound so may be I will go for the CFR mufflers , I wonder if the CFR has the same issue as the V&H high output  ?

[Sarhan]

Thank you All for the valuable advice , I agree that High output will heart the low end torque , I heard very good feedback about the fullsac 2" and 2.25" core baffles but I like deep mellow sound so may be I will go for the CFR mufflers , I wonder if the CFR has the same issue as the V&H high output  ?

Yes it will, why you don't go with fullsac SD cores they sounds deep, I have tested the CFR & V&H earlier and ended up with fullsac 

Sarhan

[Puma]

Thank you All for the valuable advice , I agree that High output will heart the low end torque , I heard very good feedback about the fullsac 2" and 2.25" core baffles but I like deep mellow sound so may be I will go for the CFR mufflers , I wonder if the CFR has the same issue as the V&H high output  ?

I've never heard a bad word about the Fullsac cores' performance or sound. I run the Dragos Dragula 2.  DEEP! Lot's of bass at idle, then adds a little muscle car to the mix when you get on it. I picked up tons of torque and HP just from the pipe and tune. Here's the dyno sheet.

[Puma]

...and a pic.

[Ridgerunr]

Another option that won't hurt low end torque is the DX pipe with Kuryakyn Crusher Mellow mufflers. Deep tone, not too loud.

[Cat Eye]

That is correct, the bike runs lean already because of EPA emissions. If you free up the exhaust that much it will be excessively lean and could do damage. I ran just the baffles for about 1000 miles but added the TTS as soon as I added the DX pipe. Now the bike sounds like a Harley and runs much cooler! You will be extremely happy with the results.

Can someone explain why operating these engines lean will cause damage.  The leaner you go from peak temp the cooler the exhaust get.   I understand that the power output is reduced in lean operation.  From my pilot days...we would operate lean of peak all the time.