Great extension at high rpm.

[How is it used?
At Circuit.
Was the one you received as per Image?
The actual product is more Parenthesis.
As expected of Yamamoto racing.
Was the installation difficult?
It might be better to have a Spring hook.
We pulled it with a Hexagonal Wrench, but it is stiff.
The installation itself was not difficult at all, and the instruction manual is included so even a beginner can install it.
How was your experience with it?
I have been struggling with the slow maximum speed at Straight for a long time.
The first time I drove with this Exhaust System, I almost ran into the Corner because the high speed range was so different. The power was that much higher.
As I said, the Exhaust System for Race is great.
Yamamoto racing's Exhaust System is now Quantity:This is the second pc, but both have great power, and the Level can be felt immediately on the Course without putting it on the chassis die.
And it is quite Parenthesis good that it is Center Up, which is rare in Grom. It looks like NSF.
The exhaust pipe that avoids the rear suspension is also a work of art, and I am in love with it.
[Included Parts:were they on?
Instruction Manual、BrandLogo stickerQuantity:1 Set of 4pcs.、Silencer band、Exhaust Spring
[Was there anything that disappointed you?
None!!! Worth the wait even if it takes a long time to deliver.
Just one point.
The exhaust pipe is directly under the drain bolt, so the exhaust pipe is in the way every time I change the oil.
This area is also as you would expect from Racing Exhaust System. Easy to maintain.

Other items that would be helpful
Installation points and hang/Availability and clarity of the Instruction Manual/Points to consider/Items to purchase/Opinions and requests to the Manufacturer View detail