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Polaris pro 800 2013 – Mountain can
I purchased a GGB can for my 2013 Pro 800 and I love it!!! Here are some videos you might be able to use on your web page.
Thank you for producing a great product!!
Polaris 600 IQ 2010 – Mountain can
Fit and finish is great. The sound is awesome, not too loud. Seems like it took a few rides to wake it up. Thanks again for the great service!!!
Polaris Assault 800 2012 - Mountain can
Bought a GGB silencer for a 2012 Polaris assault. Very happy with the product and would like to upgrade my arctic cat to a GGB also!
Arctic Cat M8 2012 - Mountain can
recently got a GGB muffler for my sled. easy to install and sounds awesome plus huge wait savings as well.
Polaris pro 2013 - Mountain can
Simple installation, great finish, BEST sound of all the brands building for the 13 pro, great customer service, fast shipping, great price. It was nice to actually speak with the owner of the company regarding specifics of the product before I purchased. Great job GGB, keep it up!
Donzi 565ci FE blown 1000hp – 4” x 16” insert Competition
Got the inserts that you sent to me for my 1970 Donzi. I will be sending a video of the boat running also. I haven’t had the noise tested yet but the inserts toned it down a lot!
Hallet 526ci blown – Tip Competition
I have the set of mufflers you added the slash cut to some years ago on my Hallet Vector. The motor is a blown 526 Chevrolet by Carson Brummett with CMI headers. The performance is excellent as well as the looks and quality. I can't say enough about your personal great service. I use the boat on the Parker Strip and had the sheriffs evaluate the noise level and they felt there would never be a reason to hassle me me for noise. I also use the boat on a quiet northern California lake where hot rod boats are not the norm with no problems. Great product! Thank you!
Steve, Southern California
Last year you fit a set of mufflers for me on my 24' LaveyCraft with 496HO.
As of October that boat finished the race season as Pacific Offshore
Champion - Outlaw Performance 5 Class, running mufflers against a class of
boats without! I have not had any problem whatsoever with your product. Thank You!
Nordic 565ci blown 900hp – 4” x 13” Inline Competition
I wanted to let you know that we completed several dyno runs at Full Throttle Marine on my custom 565 ci blown engine last Friday. There was no measurable loss of HP (peak was 911) or torque!! Bob will be sending me the raw data files shortly for my records, but suffice it to say that we’re very impressed!! We measured noise directly behind the exhaust (3 ft back and 3 ft above outlet) with and without your mufflers. Without mufflers was 103 dBa and with was 92 dBa!! Once again I was very impressed. The final test will be getting them installed in the engine bay and measuring the noise level with the boat in the water.
Thanks for all the help on the project!
Pantera 502ci – Tip Sport
Wanted to let you know how pleased I am with your transom mount extreme exhaust. The 6 inch diameter really looks great on the transom. Several other new Pantera customers are interested after seeing the photos.
I can now talk at idle or on plane. This was not possible earlier with my 502 with straight open pipes with flappers.
I took my boat to the lake prior to installing the mufflers and wouldn't
you know, the lake patrol guys didn't have the db meter available to give
me a base-line reading. So I was impatient and just installed them before I
went out the next time. Anyway, I was very satisfied with the results.
The boat sounds much quieter at idle and sounds really nice at cruising
speeds too. I don't have any experience with your competitors products but
I feel like I definitely got my moneys worth. I will recommend your product to others.
32 Skater twin 557ci 1300hp – 6” x 24” Insert Competition
Graham, as you know, last year we were faced with a daunting task. How can we make Jim DeNooyers 32 Skater "King Sting" legal for boating on Lake George, NY. The boat has twin 557 cid. blower motors, Whipple Quad rotors, Pontiac heads and makes 1300 HP at 7200 RPM's. It has been clocked at 168mph and still climbing. Here on Lake George the New York state db. limit of 90db measured one meter from the transom as required by Sae J2005 is strictly enforced. With Stellings big tube headers I wasn't at all sure we would ever be able to reach the legal noise limit and almost positive we would have to compromise some performance. Thanks to your superior engineering the results have exceeded all of my expectations. At 89-90db. as per Sae J2005 the boat is completely legal, these tests were not only performed by us at Performance Marine but also by the local law enforcement agency with the same results. After swapping our open tailpipes with the muffler pipes I am pleased to report that there is no noticeable change in power output or boost level. Simply amazing. Without your efforts and technology I think there would have been another 32 Skater for sale.
Sincerely, Jason Saris
President, Performance Marine
Howard 468ci blown – 4” x 8” Insert Competition / 4” x 8” Clamp-on Competition
I contacted Graham at GGB Exhaust this last winter to see if he had any ideas on how to make my boat compliant with the J2005 California boating noise law, but not completely choke the performance out of the motor. I explained that I was running a blown gas Howard runner bottom. The engine is a 468 BBC with a 6-71 Littlefield blower stepped up to 13% over. The engine also has Rewarder headers. The boat has a lot of lope at idle and a good deal of noise, the dB meter shows well over 100 dB’s just at idle. I love the engine noise but some of the local lakes aren’t very big fans of the noisy big block motor. My young kids have grown accustom to asking for their ear plugs when in the boat. With the GGB 8” long inserts slid into the collectors we had gained a lot of noise reduction without affecting performance but I still needed to drop several dB’s to be legal. After speaking further with Graham I added the polished stainless steel clamp on mufflers to the headers. When I fired up the motor with the new Clamp on extensions the noise reduction was very noticeable. With no engine adjustments I was now within 2 decibel’s from being totally legal. All I need to do is bump the idle down a little and we will be compliant. It’s great to know that if I will be boating at a lake with strict noise restrictions I can add the clamp on extensions and not be hassled.
Thanks to everyone at GGB for helping me