designo

iTrader: (6)

Took off the Tanabe's and got the Greddy Supreme SP's installed.

Tanabe's sounded great but droned like hell and the tips weren't aggressive enough for me.

The Greddy's are much quieter and look great and give off a howl at higher RPMs which is awesome.

I'll have a few drive by and in cabin videos up soon.

Enjoy

tsongdds

Is that everything stock with the exception of Greddy? It sounds very nice

designo

iTrader: (6)

That's right. Just the axle back. Everything else is stock.

john341

Love that rumble. The rooster crowing in the background, reminds me of my childhood when I used to leave in a small village.

designo

iTrader: (6)

UPDATE #1

I forgot to mention something which to many of us GSF owners would be detrimental.
With this Axle Back, I feel I've lost performance. The car is heavier and hesitates during acceleration.

I will still give it some time and investigate further. Right now, I'm enjoying the looks of my exhaust and keeping the cops off my ***. However, I will get back to all of you with more updates.

Any input or possibilities I may need to look into would be appreciated. The loss in performance is very obvious.

1BlinkGone

Maybe some bad fuel perchance?

designo

iTrader: (6)

Nope, I am convinced it's the Greddy Axle Back. I don't know if it's design issue. But definitely loss of power. The Tanabe was perfect... I just didn't like the way the tips looked.

gsfdream

the high pitched howl you hear at high rpms is not normal for an exhaust to do that. I rode in my friends gsf with the greddy axle back and inside the cabin its so loud and noticeable.
There has to be some air flow restriction in the muffler creating to much back pressure possible causing ur feeling of loss of power.
I personally did a muffler delete on my gsf and it sound way better then the tanabe and greddy combined.
have a listen.

designo

iTrader: (6)

Yes Rafa you're right about the exhaust restriction.

Personally I don't care much for louder exhaust note. All I want are looks. But not at the expense of performance.

Anyone else running Greddy axle back that can share their experience ?

designo

iTrader: (6)

I'm removing the Greddy system. There is definitely something wrong going on here.
The lower pipes on each side get blacked up so there must be some sort of un-even exhaust.

A local tuning shop asked me to bring over the car and check out the axle back. Either it's just bad design or a defective system.

1. Performance is crap.
2. Sounds like a wolf at 5000+ rpm
3. Lower outer tips get dirty while the inner ones are shiny clean. Looks odd.

So basically, performance, sound and looks are all compromised. The back-pressure is so obvious, it ain't even funny.