taco eater :
Andrew Snowberger from MEDFORD, OR United States
Although my bike did get to 25mph a lot quicker than with the stock pipe. Tiny bit louder than stock pipe. Hella sturdy construction.
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Instant power upgrade from stock
September 5, 2020
taco eater :
Carl Johnson from Newbury Park, CA United States
This was easy to install on a 1977 Vespa Bravo. I had to use the mallet just a little bit to pound the rear bracket towards the wheel side so it would be lined up properly. That was super minor though and was a really easy fit overall. Re-used the stock bolt.
Definitely more power upgrading from the little stock muffler. Haven't done anything with air filter or carb yet so I can guarantee this variable alone is power.
Noise has also increased, maybe 20% or so? Probably about equal with the power increase. A bit more metallic brapping. Not horrible but it is definitely getting more of a "2 stroke dirt bike" sound than the old "muffled moped" sound.
I got this as a compromise between power, noise, and looks. Seems to be just right as far as that goes.
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RINGG DINGGG RINGGGGGG
July 10, 2018
taco eater :
Micahwave65 from Mount Pleasant, MI United States
Pretty great little muffler for my grande, definitely a good upgrade from the silver little stock one. I gained about 4 mph with a little upjet. It takes off a little faster too! It wiggled on with help from a rubber hammer. Only little issue is the stock rear tire on 1980 grande is 2.75 wide and rubs a little bit on the side of the tire slightly. need to upgrade yer tire to the new 2.50 wide tires and the rubbing will go away.
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good pipe
November 2, 2012
taco eater :
Anonymous Person from Rochester, MI United States
I recently bought two of these pipes, one for my Si and Grande. First, the pipe bolted right up for the Grande. Second though, the pipe bolted to the cylinder of the Si fine, but the rear mounting bolt flange on the new pipe does not align to the stock rear hole. It's inches away, thus you must drill a new hole in the subframe for the new pipes rear flange. Lastly with both pipes, you do not get a new rear flange bolt and you can't use the stock 13mm bolt. You will have to go buy a new rear bolt that is US standard threads.
Just keep this in mind when you buy these pipes! : )
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Nice Boost for a Stock Grande
November 10, 2011
taco eater :
Mariano Ulibarri from Las Vegas, NM United States
Bolted up easily on my '79 Grande. Paired with a Malossi Hi Flow Filter and a slight upjet it added noticeable power across the entire range and added 4-5mph in top speed. Well worth the price! Looks nice & stock too...
My Grande has SAE nuts & bolts - this is threaded metric. No big deal.