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Discussion Starter · #1 ·
...on an 05 or newer. I need a part that you took off. I need the rubber boot that covers the reed valve. If you have one you could send me I'll pay postage and send it back if you want it back. Thanks!

This thing...
 

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SAI is Secondary air injection. It is an emmisions add on. Most commonly removed to aleaviate the annoying popping noise during decel.

Kulhka our mod made some block off plated for the reed valves on the head. From there it's easy to remove the solinoid, tubing, and load a non-sai tune. The tune is required to get around the check engine light coming on.
 

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Discussion Starter · #8 ·
Thanks Dfib....What hoses do I need to block off? I'm sure there is an extra hole in the air box when everything is removed. Correct?
 

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If you block the hose at the top of the pic, and the hole that comes into the front of the airbox it should be ok.

Ran a little slow in the garage today, your stuff with ship tomorrow.
 

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Hi Dev,

I just plugged the hole in the air box with a 6mm nut and bolt with 2 rubber grommets to seal the thing up and put the hose and clip back on. Where do you suspect the other air will come from?

Just got back from a short 10 mile round the block test ride and all was fine. Not a hint of backfiring from the non SAI tune.

The bike feels really strong now. Better than any of the variants I've tried recently, with 1 single sided Art (modified mid section), Twin Arts, unmodified modified header, with and without pre cat etc etc.

MH


Devious2xs said:
MH - Did you block off the reed valves on the head?
If not, the SAI will simply pull air from outside the airbox now.
 

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Sorry to revive an old thread.

BUt have 2006 S3, with Mivv low mount carbon pipe, baffle removed.
Dealer loaded Arrow 3-1 tune for me.(son not sure if they loaded SAI or non-SAI tune)

Have flames out pipe and popping on hard decelleration, and gurgling on decell.

Didn't realise I had SAI, (I'm in Australia)

If I block this off with bolt and grommes as in this thread, will the EFI give an error code?

If not I'll head into the garage and block it off right now.

Cheers

B
 
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Is there any harm if I block off SAI with nut and bolt and put the hose and clip back on and bike has SAI tune in ecu? Do I need non-SAI tune or is it just for error code if I do complete SAI removal?
 

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>>>Is there any harm if I block off SAI with nut and bolt and put the hose and clip back on and bike has SAI tune in ecu?
NO HARM

>>>>Do I need non-SAI tune or is it just for error code if I do complete SAI removal?
Just for erroe code, but noone should want their check engine light lit constantly, hard to tell when a real failure coes occur later then....
 

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cwb4tx said:
>>>Is there any harm if I block off SAI with nut and bolt and put the hose and clip back on and bike has SAI tune in ecu?
NO HARM

>>>>Do I need non-SAI tune or is it just for error code if I do complete SAI removal?
Just for erroe code, but noone should want their check engine light lit constantly, hard to tell when a real failure coes occur later then....
+1

It's really not necessary to go the bolt, nut etc. route. All you need to do is put a piece of duct tape over the port inside the air box. If you had a non-SAI tune loaded you would not be having the backfiring problem so you should keep the solenoid plugged in until you can get the tune changed.
 
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