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Brocks Penta-Carbon Full System 14" Muffler Honda Grom (22-25)
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Brocks Penta-Carbon Full System 14" Muffler Honda Grom (22-25)

$
Sale Price: $834.00
You save $!
Product Code: 367220
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Brocks Penta-Carbon Full System 14" Muffler Honda Grom (22-25)
  • 14" megaphone muffler with brushed finish
  • High mount system for increased cornering clearance
  • 'Mini' Penta-Carbon muffler engineered exclusively for the Honda Grom
  • Race system designed to complement DHM Big Bore Kit and OEM displacement engines
  • Maximize horsepower output by pairing with our Short Ram Air Intake Kit with Sprint Filter
  • Innovative three-piece mounting flange design increases exhaust gas velocity
  • Aerospace quality, ultra-lightweight stainless construction
  • 2.25" outlet permanent baffle (glass wool/fiberglass) for long life and deep sound
  • Distinctive look and aggressive sound (optional noise suppressor sold separately)
  • Each muffler is hand-fabricated into a distinctive penta-diamond shape
  • Customize with over 100 different color combinations
  • Endcaps are produced by BST to ensure a perfect match to your wheels
  • Pre-installed 18mm bung for wideband O2 sensor
  • 39% weight savings vs. OEM full system
  • Provides maximum ground clearance
  • No fairing modifications required
  • Not compatible with OEM rear fender
  • Exhaust system designed to work in conjunction with the MNNTHBX V3 fender eliminator
  • OEM turn signals will need relocated or replaced (Motodynamic Integrated Tail Light available here)
  • Replacement exhaust pipe gasket recommended
  • Includes Brock's lifetime direct support package at no additional charge
  • Includes access to Brock's map support programat no additional charge
  • Click here to view logo plate color options
  • Click here to view Installation Instructions

Honda Grom Exhaust Weight Comparison:

OEM Exhaust System (one piece):

  • Full Exhaust: 7.50 lb.

Total = 7.50 lb.

Brock's Performance Penta-Carbon™ Full System:

  • Muffler: 2.50 lb.
  • Head Pipe: 1.45 lb.
  • Tail Pipe: 0.45 lb.
  • Hardware: 0.15 lb.

Total = 4.55 lb.

Total Weight Savings = 2.95 lb. or 39% of stock weight


Honda Grom Exhaust System Decibel Levels

Testing procedure performed according to SAE J2825

Penta-Carbon™ Muffler:

Idle: 86dB / 2000 RPM: 84dB

Penta-Carbon™ Muffler (with Noise Suppressor):

Idle: 79dB / 2000 RPM: 83dB

The Brock's Performance Penta-Carbon™ Stainless Steel Full Exhaust System is like no other. Make it your own! The Penta-Carbon™ is designed to be customized to your specifications. The heart of this customization is a beautiful five-sided carbon fiber endcap produced exclusively for Brock's Performance by world-renowned carbon composite specialists Blackstone Tek (aka BST Carbon Fiber wheels). Not only is the carbon cap available in gloss or matte finishes, we have also expanded the offerings to match any available BST carbon fiber wheel custom ink colors, for a combination that is truly unique. Check this link for more information on Xirallic®, the shimmering 'Ink' finish applied to produce subtle colors that explode in direct sunlight: BST Custom Ink & Finish Options

Don't have carbon fiber wheels yet? No problem, the colored end caps match the schemes of most brands: blue, red, and green… just to name a few.

'What about the pipe,' you ask? With sharp lines to match the aesthetic design trends of most modern sportbikes combined with the aggressive sound (hidden noise suppressor sold separately) Brock's exhausts are known for, the Penta-Carbon™ shape won't get lost in the crowd. If you like the sound and power of our Alien Head mufflers, you will love this modern take on Brock's legendary mindset.

Brocks Penta-Carbon Full System 14" Muffler Honda Grom (22-25)

$834.00
Product 4

Pete K, LA

" Thanks for the efforts by the team at nicecycle.com. Was some fun getting the look I wanted. This is hands down the best investment I've made for my Kawasaki Ninja —OEM-level quality, custom paint was FREE, and a perfect fit straight out of the box!

Product 4

Pete K, LA

" Thanks for the efforts by the team at nicecycle.com. Was some fun getting the look I wanted. This is hands down the best investment I've made for my Kawasaki Ninja —OEM-level quality, custom paint was FREE, and a perfect fit straight out of the box!

Product 3

Mike J, Florida
Had a crash on my ZX10R and was just looking for a basic OEM replacement. The NiceCycle team had other ideas—they threw me a bunch of custom design options I hadn’t even considered. Ended up with something way better than stock. Lot of effort from their side, and it really shows. Super happy with how it turned out!

 motorcycle

Steve K , Texas ,
Went with a Candy Apple Red for my Hayabusa custom build—came out insanely good. The quality is slick, the paint pops, and it’s a total head-turner. Got a ton of compliments already. Great product, and the team was awesome to deal with!" 🏍️🔥

Product 4

Pete K, LA

" Thanks for the efforts by the team at nicecycle.com. Was some fun getting the look I wanted. This is hands down the best investment I've made for my Kawasaki Ninja —OEM-level quality, custom paint was FREE, and a perfect fit straight out of the box!

Product 3

Mike J, Florida
Had a crash on my ZX10R and was just looking for a basic OEM replacement. The NiceCycle team had other ideas—they threw me a bunch of custom design options I hadn’t even considered. Ended up with something way better than stock. Lot of effort from their side, and it really shows. Super happy with how it turned out!

 motorcycle

Steve K , Texas ,
Went with a Candy Apple Red for my Hayabusa custom build—came out insanely good. The quality is slick, the paint pops, and it’s a total head-turner. Got a ton of compliments already. Great product, and the team was awesome to deal with!" 🏍️🔥

Product 1

Jose M. Albuquerque, NM
Fairing kit fit like a glove, and the paintwork is top-notch. Had a small issue, but NiceCycle.com sorted it out fast—no hassle at all. Bike looks brand new, couldn’t be happier!

Product 4

Kevin T , NY

Big thumbs up to NiceCycle! Had a blast working on my CBR1000RR design—threw them a few ideas, and they came back with even more. Ended up with a 100% unique color and design that looks insane. Great service, great product—highly recommend!

Want some Assistance from our Design Team?

CUSTOM DESIGNS ARE FREE!

OEM Quality , Professional Paintwork Team , 100% Guarantee

Since 2008 the Largest Supplier of Custom Fairings ⭐ ⭐ ⭐ ⭐ ⭐

Want some Assistance from our Design Team?

CUSTOM DESIGNS ARE FREE!

OEM Quality , Professional Paintwork Team , 100% Guarantee

Since 2008 the Largest Supplier of Custom Fairings ⭐ ⭐ ⭐ ⭐ ⭐

Want some Assistance from our Design Team?

CUSTOM DESIGNS ARE FREE!

OEM Quality , Professional Paintwork Team , 100% Guarantee

Since 2008 the Largest Supplier of Custom Fairings ⭐ ⭐ ⭐ ⭐ ⭐

Frequently Asked Questions:

Have a Question Related to Motorcycle Fairings or Parts orders? Check out our quick view FAQs

Check Out - The Nice Cycle Guarantees! 💯 ✅

🛡️ Nicecycle Guarantees Fairings & Parts 🛡️

  • ✅ 100% Fitment Guarantee: Each Fairing kit is engineered to fit your motorcycle perfectly, with no modifications or drilling required.

  • ✅ 100% Quality Guarantee: We use premium-grade ABS plastics and a three-layer painting process to deliver fairings that meet the highest standards of durability and finish.

  • ✅ 100% Delivery Guarantee: We guarantee your order will arrive on time and in perfect condition. If any items are damaged during transit, we’ll replace them for free.

🛡️ Parts Quality Delivery & Returns Guarantee 🛡️

  • ✅ Top Brands and Suppliers: We only use the best names in the aftermarket powersport industry to ensure premium quality and reliability for all motorcycle parts.

  • ✅ Quality Guarantee: We stand by the durability and performance of our parts, offering assurance that every product meets our rigorous standards.

  • ✅ Delivery Guarantee: We ensure your order arrives on time and in perfect condition.

  • ✅ Returns : Returns are accepted for parts in their original, unused condition within 30 days of purchase.

Trusted by the Industry – Read Our Press Reviews! ⭐

🔎 See What the Pros Say About NiceCycle!

🔗 CYCLE WORLD - Magazine - Review Click HERE
🔗 SPORT RIDER - Magazine - Review Click HERE
🔗 SUPER STREET BIKE - Magazine - Review Click HERE
▶️ Patrick Stevens Stunt Rider -Unboxing / Fitting
▶️ Leah "LeahStunts" Petersen fromStuntBums.com
▶️ Abraham Fled MotorcycleFreestyle Stunts

Fairings - What is the Order & Production Process ? ⚙️ 🔧

How does the Order process work?


Order Confirmation: Once you place an order on our site our Customer Support team will contact you directly to confirm the specifications and any custom requirements or questions you have. (You can also request an itemised invoice to review first if you prefer – Just ask)

Project Approval: Once project is Completed, we will then send you several 'Proof Pics" for you to approve your paint job is exactly what you want prior to Boxing & Shipping.

Shipping: One your Kit is carefully boxed and shipped we will monitor and provide shipping updates when we receive details from our logistics partner. We are always available at any time to answer questions.

What’s included in Each Fairing Kit?

✅ Complete Set of Injection Moulded Fairing Plastics to Suit your Specific Model (between 10-30 separate items depending on the model)

✅ Highest Quality Paintwork that includes x3 layers of your choice of Paint Combination PLUS x3 Layers Gloss Coat.

✅ Professionally Installed Pre-Drilled Mounting Holes, Ready For quick Installation.

Free Heat Shields pre installed to protect Fairings from heat damage

Free Windshield

Free Bolt Kit

Fairings - Production & Shipping Information 🚚 📦

Every NiceCycle Custom Fairing / Bodywork Kit is Hand Crafted & "Made to Order " ( Nicecycle kits are not Cheap Pre-Painted Off the Shelf Kits ) Project Steps and Customer Approval is as Follows.

Once your Project has been Completed and Customer has Approved , we complete Boxing and shipping : Once you have approved your project to our team for Boxing and Shipping we will immediately start Carefully packing your New Fairing Kit in Protective wrapping and Start the Delivery process and Provide Tracking Numbers . We offer a 💯 Delivery Guarantee!

Shipping : 🚚 (USA / Canada / Europe & Australia) is Calculated at Cost Price ( ZERO Mark Up ) (Please Note : These Kits require Large and carefully packed large boxes with many pieces ( Between 15 -30 Items in 1-2 very well packed large boxes ).Once Boxed and Shipped have an average of a 7- 14 Working Day delivery window. Please contact us for further information "before" you place an order if you have any queries).

Note: If you want any FREE Paint modifications or a Custom Look - Just ask its FREE - Click Here

Fairings - Custom Paintwork Request? Its Free

💦 Custom Paintwork Queries 💦

We have custom Painted Over 8,000 different Paint-jobs Since 2008 - If you have an Idea Just ask - Its Free Click Here& fill in your Details , one of our Gearheads from the Paint-shop will help you Turn your Idea into an Awesome , Affordable new Look for your Bike !

Thats the Nicecycle Guarantee!

Motorcycle Parts - Ordering & FAQs

Here are some FAQs to Help Get you Started.

Here at NiceCycle we are dedicated to making sure your Parts Search and Purchase is a satisfying one!

Looking for a Unique Motorcycle Part of Accessory or Have a Question ? Simply Hit Live Chat button - Within 24 hours one of our Gearheads will have searched multiple Suppliers to find you as many options as possible, With access to suppliers with more than 500,000 items its likely we can find it for you what your looking for!

Price Guarantee - We Guarantee to beat any (non sale) Price advertised on any Dealer approved site


Returns and Refunds - If there are any issues with your purchase please contact us so we can do what it takes to make it right and get you back out on the road!


PARTS Returns are accepted at NiceCycle.com. All returned items must be returned in their original condition, un-mounted and free of defects. Returns are subject to our specific time frame allotted for returns . Return shipping is at the expense of the customer. There is a 10% restocking fee on all returned items. Cancellations or orders that are in progress, and cancelled by the customer will be subject to a 10% restocking/handling fee. Simply email [email protected]and we will forward steps to return

Why its the Best and Most Affordable way to Upgrade your Ride?

Learn More with a Quick Video !

Pro Rider Patrick Stevens - Nicecycle Unboxing - Product Review

Watch the complete process of this CBR1100RR custom Paintwork , Fitment and Finish!

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