301/420cc Exhausts

4 Stage Header Pipe, Build Your Own

Introducing the 4 Stage, Build Your Own Header Pipe from GoPowerSports! This versatile two-piece kit allows you to unleash your creativity and build your own custom header pipe. With endless options, you can design a header pipe that perfectly fits your...

Mini Muffler, Chrome

Upgrade your ride's sound and style with our Chrome Mini Muffler. This sleek, compact accessory is designed to provide your vehicle with a robust, deep tone that commands attention on the road. Crafted from high-quality materials, our Mini Muffler...

Exhaust Gasket GX270/390

The Exhaust Gasket GX270/390 is a high-quality gasket that is designed to provide a reliable seal for your vehicle's exhaust system. This gasket is designed to fit perfectly with a GX270/390 exhaust manifold, ensuring consistent and efficient performance...

RLV #4102 1-1/8" Exhaust Silencer w/ HD SS Clamp

The RLV #4102 1-1/8" Exhaust Silencer w/ HD SS Clamp is a top-quality silencer designed to effectively reduce exhaust noise for your small engine. Made from high-grade materials, this silencer is built to last and can withstand the regular use demands...

1" Mini Muffler w/ HD SS Clamp

Enhance your small engine's performance with the 1" Mini Muffler, complete with a heavy-duty stainless steel clamp. This premium muffler is expertly crafted to deliver superior noise reduction, ensuring a quieter and more enjoyable experience...

301cc & 420cc Header Pipe, 1.125" OD (Honda GX240, 270, 340, 390)

The Predator 301cc / 420cc Header Pipe also fits Honda GX240, 270, 340, 390 Engines.  Stud Spacing: 2" Center to Center 1.125" OD For best performance from this Header Pipe, add the Predator Performance Air Filter Adapter Kit to your...

Header Flange, 301cc/420cc

The Header Flange for 301cc/420cc engines is a top-quality replacement part designed to enhance the performance of your engine. It is made from premium-grade materials that can withstand high temperatures and heavy use, ensuring long-lasting durability...

Trumpet End, 1-3/8"

Looking for an upgrade for your header pipe? Check out our Trumpet End, 1-3/8". It's a lightweight, 2-stage, trumpet end that perfectly fits the high performance F&B header pipes that we sell. Made in the USA, this trumpet end is guaranteed to...

Trumpet End, 1-5/16"

The Trumpet End is a lightweight, 2-stage design made for use on a 1-5/16" O.D. header pipe. This product is made in the USA and is designed to increase all-around performance while producing a better and deeper sound. It is slotted for easy assembly...

Trumpet End, 1"

The Lightweight, 2-stage, Trumpet End, 1" is a high-quality accessory that is made in the USA. It is designed to fit on a 1" O.D. header pipe and is made of mild steel, making it easy to weld onto most header pipes. This trumpet end is slotted for easy...

301cc & 420cc Straight Back Header Pipe

301cc & 420cc Straight Back Header Pipe Wide Power Range .990x .995 x 1.070 x 1.220 x 13 End flares out to 1-5/16" Muffler Option: Exhaust Silencer, 1-5/16: with HD SS Clamp Due to the bend, you will need to do some modification to run this...

Exhaust Silencer 1" with HD SS Clamp

Exhaust Silencer 1" with HD SS Clamp Fits 1" OD Header Pipes 7" Long   Clamp included The B91 Muffler fits the following Header Pipes:     Trumpet Header Pipe (Must cut flared tip off)     Coleman Header  ...

Header Support

Header Support Bracket Prevents Header Pipe from breaking Recommended when using a Muffler Header Support Kit Includes: Steel T-Bar Hose Clamp T-Bar Overall Dimensions: 11.25" x 4"

Header Pipe, Build Your Own

Build Your Own Header Pipe 1" Diameter Fits: 212cc (Hemi and Non Hemi) 301cc 420cc We strongly recommend using the Header Support to prevent pipe from breaking.  

Silicone Header Sleeve 20"

Silicone Header Sleeve Silicone Outer Construction Fiberglass Inner Construction Does not require Wire Ties or Clamps Sleeve will smoke the first few times after it's newly installed 20" Length The Silicone Header Sleeve 20" is a high-quality...

Performance Exhaust Kit

Performance Exhaust Kit Includes: High Flow Header Pipe for the Predator 6.5HP / 212cc Engine Adjustable Header Support Brace RLV Dyno Tuned Muffler Muffler Clamp Heavy Duty Hose Clamp Details: Header Flange Stud Spacing: 1.75" Center to...

Exhaust Accessory Kit, 1" or 1-5/16" Opening

Exhaust Accessory Kit, 1" or 1-5/16" Opening Kit Includes: B91XL RLV Stock Class Muffler Adjustable Header Support Bracket Hose Clamp RLV Muffler Clamp The RLV Muffler provides a quieter sound for more delicate riders, while still adding...

RLV Muffler Clamp

RLV Muffler Clamp Used in conjunction with all RLV Mufflers Secures Muffler to your Header Pipe  

Exhaust Silencer, 1-5/16" with HD SS Clamp

Exhaust Silencer, 1-5/16" with HD SS Clamp Classic RLV Stock Class Muffler with a 1-5/16" Opening Dyno Tuned to create better performance on most Engines Mandated by most Karting Sanctions Comes with clamp 7" long The B91XL muffler fits the...