ANybody Drilled The CAT on a 2010 SG?

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Oct 15, 2009 | 11:56 PM

#11

sonar_chris

Outstanding HDF Member

Joined: Feb 2005

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From: San Diego

Check this out Big Pig.

http://www.cvoharley.com/smf/index.php?topic=27814.0

Oct 17, 2009 | 01:13 PM

#12

Big Pig

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Joined: Feb 2008

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From: Greensboro, NC

Thanks Chris, the EXACT info I was looking for!

Oct 17, 2009 | 01:29 PM

#13

DHart

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Joined: Sep 2007

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From: Vancouver, WA

Another option is to buy the D&D complete 2-into-1 exhaust system. Not a cheap approach, but pretty much just bolt on. They're in high demand now... a bit of a wait.

Oct 17, 2009 | 04:12 PM

#14

lh4x4

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Joined: Dec 2007

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From: Illinois

Will this change the O2 readings and cause the check engine light to come on? Over the years I have done this to cars and the check engine light would come on. The code would be low cat performance.

Oct 17, 2009 | 05:11 PM

#15

Big Pig

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From: Greensboro, NC

Quote:

Originally Posted by lh4x4

Will this change the O2 readings and cause the check engine light to come on? Over the years I have done this to cars and the check engine light would come on. The code would be low cat performance.

No and the ECM will also adjust for the difference in air flow also according to the techs I talked to.

Oct 19, 2009 | 06:18 PM

#16

Big Pig

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From: Greensboro, NC

Drilled mine in the 2010 SG today and my buddy drilled is in his '09 CVO RG. They both went very smooth and easy and could tell a difference in both sound and heat off the exhaust now that it can breath like it should.

Oct 19, 2009 | 07:09 PM

#17

sonar_chris

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Joined: Feb 2005

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From: San Diego

Great! Now send me the bit so I can drill mine out. LMAO

Oct 27, 2009 | 10:39 AM

#18

Saved Sinner

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Anybody else tried this yet??? I ordered the core bit today, want to get it done on the 2010 Ultra but waiting on more feed back.

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Oct 27, 2009 | 10:56 AM

#19

michaelm

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Don't drill out the Cat. You can't get it all out. Send it to fullsac (www.fullsac.com) they'll cut the headpipe and remove all of the cat for a very reasonable price. While you're at it, have them recore your mufflers too. It makes a BIG difference. Do a SERT or PC or TTS dyno tune to get the AFR right and you're good to go.