Smog Block Off Plates. Use Them Or Don't Use Them...? - Yamaha R1 Forum: YZF-R1 Forums
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post #1 of 19 (permalink) Old 11-08-2012, 12:27 PM Thread Starter
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Smog Block Off Plates. Use Them Or Don't Use Them...?

So I am building my 09 R1 up, and I've seen a lottt of talk about the smog block off plates. I personally will probably throw a set of Driven plates on mine for future dyno tuning along with the reduction of any backfiring.

So who uses them? Who doesn't? Why or why not?

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post #2 of 19 (permalink) Old 11-08-2012, 12:37 PM
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I use them, I bought some reasonably priced ones off fleabay, they stopped all the back firing and popping (that wasn’t too bad with baffles out but always sounded worse when you needed it quiet) this enabled me to sneak past the police quietly that I couldn’t do with the pump on! It didn’t feel any faster or run any different but must have lost a pound in weight off the bike
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post #3 of 19 (permalink) Old 11-08-2012, 03:22 PM
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yeh i've been runnin' 'em Graves do-hickeys since i got rid of my cats..

running 3/4 leo vince with reflash.. now happier than ever... only get
slight gurbly pop pops when entering a corner under engine breaking...

before the re-flash n' AIS delete, it would backfire like a sumbiatch...
friends could barely ride behind me as it would try n' rip their heads off
every time i used compression... hahaha...

they're so cheap i dont see why anybody would opt not to run 'em..

takes a little mechanical know how to replace'em but its par for the course.. may as well learn
to do yer own spark plugs.. its only 1 more step to get at 'em...


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Last edited by bacchus40; 11-08-2012 at 03:24 PM.
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post #4 of 19 (permalink) Old 11-08-2012, 03:31 PM
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I'm running grave block offs on my 06 and it made a huge difference in back firing popping.

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post #5 of 19 (permalink) Old 11-25-2012, 06:57 PM
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Quote:
Originally Posted by bacchus40 View Post
they're so cheap i dont see why anybody would opt not to run 'em..
I like the popping.

Mind you, they are just subtle little pops, and not backfires like you would expect from a beater.

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post #6 of 19 (permalink) Old 11-25-2012, 08:03 PM
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Do I need the plates or can I just disable the system with the flash?
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post #7 of 19 (permalink) Old 11-25-2012, 10:03 PM
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Quote:
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I like the popping.
yeah i did too, when i was like 15

Quote:
Originally Posted by fastkx125 View Post
Do I need the plates or can I just disable the system with the flash?
get the plates... like i said you may as well learn to do your own spark plugs while you're in there...


2009 YZF-R1 xPlanker

DJ PCV, AT200 & POD300, Leo Vince EVOII SBK/ARROW SS HEADER, GRAVES STACKS & AIS, GYTR, ECUnleashed, SHORAI, YOYODYNE sc, HINSON bskt, EBC SRK, ASV clutch perch, RK520, JT 15T/44T, Lithtech chain adjust, ANNITORI RL
CLEVER WOLF CF, RIZOMA grips, APEX risers, CRG Arrows, GYTR seat, SHOGUN sliders, GBR covers, GYTR db, Watsens, 6000k HID, RACETECH springs, RACETECH G3-LD, OHLINs FPK, CL SBK5/RX3, HEL SS lines, Accossato Radial 19x18,
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post #8 of 19 (permalink) Old 11-26-2012, 02:15 AM
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Quote:
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yeah i did too, when i was like 15
Well, I haven't been 15 in a very long time. Hell, I guess that's why a lot of kids like exotics, since quite a few of them do it to.

I actually think we're talking about 2 different events. My last R1, which had plates, among many other mods, still made the sound that I am referring to.

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post #9 of 19 (permalink) Old 11-26-2012, 02:57 AM
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Quote:
Originally Posted by Minacious View Post
I like the popping.

Mind you, they are just subtle little pops, and not backfires like you would expect from a beater.
+1

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post #10 of 19 (permalink) Old 11-26-2012, 09:21 AM
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Quote:
Originally Posted by fastkx125 View Post
Do I need the plates or can I just disable the system with the flash?
You can do either, however Flash-Tune recommends you eventually remove the AIS and replace with plates.

You will still get some popping, but not as much...


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post #11 of 19 (permalink) Old 11-26-2012, 09:35 AM
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The way I see it, it's an environmental thing. If you already took out the cat, then it's useless and not helping much anyway. Might as well get rid of the extra clutter.

I far prefer the clean sound as well. Bike only pops on very hard engine breaking now. Imo, excessive popping just sounds like an out of tune bike.

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post #12 of 19 (permalink) Old 11-26-2012, 09:38 AM
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I don't run them, After the flash I get a pop now and then, like the M1 does on the track, usually it is during a shift with the HR Quick shifter.

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post #13 of 19 (permalink) Old 11-26-2012, 09:49 AM
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If you want the tuner to be able to accurately read your A/F, get the plates. The AIS injects air into the exhaust which will make tuning a little more challenging.

The lack of decel pops is a plus.


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post #14 of 19 (permalink) Old 11-26-2012, 10:54 AM
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Quote:
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If you want the tuner to be able to accurately read your A/F, get the plates. The AIS injects air into the exhaust which will make tuning a little more challenging.
Good point.

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post #15 of 19 (permalink) Old 11-26-2012, 03:20 PM
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Block the pipe it's cheaper... Once there blocked they flame :0)
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post #16 of 19 (permalink) Old 11-28-2012, 09:11 PM
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I needed them

I have a 2012 and I wasn't going to get them until I got the auto tune for my power commander, if you run an auto tune it won't read the Air fuel ratio correctly without the plates. So if your running a tune be it auto or on a dyno I would put them on. I got the graves ones for real cheap and they were really easy to install
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post #17 of 19 (permalink) Old 11-28-2012, 11:01 PM
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Quote:
Originally Posted by Minacious View Post
Well, I haven't been 15 in a very long time. Hell, I guess that's why a lot of kids like exotics, since quite a few of them do it to.

I actually think we're talking about 2 different events. My last R1, which had plates, among many other mods, still made the sound that I am referring to.
i was being an arse.! hahaha... yeah noh we're talking about the same thing then... thats the sound i love... but prior to a reflash and custom tune it was ugly... nasty throaty pop.... okay, so we're good thenl.,!..

Quote:
Originally Posted by blankrider13 View Post
I have a 2012 and I wasn't going to get them until I got the auto tune for my power commander, if you run an auto tune it won't read the Air fuel ratio correctly without the plates.
EXACTLY! i bought my auto-tune and graves plates at the exact same time,!...


2009 YZF-R1 xPlanker

DJ PCV, AT200 & POD300, Leo Vince EVOII SBK/ARROW SS HEADER, GRAVES STACKS & AIS, GYTR, ECUnleashed, SHORAI, YOYODYNE sc, HINSON bskt, EBC SRK, ASV clutch perch, RK520, JT 15T/44T, Lithtech chain adjust, ANNITORI RL
CLEVER WOLF CF, RIZOMA grips, APEX risers, CRG Arrows, GYTR seat, SHOGUN sliders, GBR covers, GYTR db, Watsens, 6000k HID, RACETECH springs, RACETECH G3-LD, OHLINs FPK, CL SBK5/RX3, HEL SS lines, Accossato Radial 19x18,
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post #18 of 19 (permalink) Old 11-29-2012, 11:34 AM
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I made my own out of 3/16" carbon fiber plate. They're lighter and look better.

The flash seems to mess up the picture. They look better in person.
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post #19 of 19 (permalink) Old 11-30-2012, 04:59 AM
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i dont mind mine it has that muscle car poping to it. but i might do it anyway for tuning purposes and everyone bitches about how loud the bike is already so what the hell pop away i guess
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