Custom Bikes and Pipes with ATTITUDE!
704-795-2211
Grumpy's Customs
visit us at
7200 Robinson Church Road
Harrisburg, NC 28075



External Finishes


We offer 4 finishes:

Triple plated CHROME,
Flat Charcoal Black CERAMIC,
Satin Vivid Black CERAMIC,
or Cool-Chrome Silver CERAMIC.


Internal Coating


We offer 2 options for internal coating:

1) We can apply a basic internal chemical compound invented and used by NASA that allows the pipes to run cooler. Although it doesn't guarantee against color changes caused by timing or rejecting issues, it will allow the pipes to run at a cooler temperature. Basic internal coating is $85 per set.

2) We can ceramic coat the inside of pipes for added protection and performance. Internal ceramic coating reduces the radiant temperature of the pipe approximately 300 degrees! Less heat means less friction which equals more horsepower. Ceramic internal coating is about $130 per set depending on the length of the pipes.


Baffles and Tips


See our Accessories page




Master Builder's
Pipe Kit
$290





With this 20 piece kit you can build your own custom set of 1.75" to 2.25" pipes.
Kit includes: 2 head rings, 2 flanges, 2 gaskets, 10 bends, 2 straight tubes, and 2 transition wedges.






Custom "one-off" Pipes


info/photos coming soon




Grumpy's Pipes

 "Waking your neighbors since 1999!"
With over 10,000 sets of pipes being hand built over the past 11 years, Grumpy’s knows a thing or two about custom exhaust. All of our pipes are made from premium 16 gauge steel tubing. Bends are mandrel bent and all pipes are welded with High Frequency TIG Welding by Certified Welders. Listed below is a menu of our current production pipes. Grumpy’s also builds one off custom pipes. The only limit on design is the imagination! Custom built pipes are NOT RETURNABLE - they are built to your specifications, therefore when you buy them you own them! See lower left for more info on customs.


Current Production Pipes:



Kingpins     $575


1.75" pipe merged into 2.25" pipe. Often imitated but NEVER duplicated, this pipe is our best seller, and with good reason - its good looks are matched only by its sound. Also available for right-side drives.




Rehabs     $800


We are very proud of these pipes. They were originally designed for the 2002 Camel Bike built by Kendall Johnson. Rehabs have a sound and style all their own.



Twisted Sisters    $750


1.75" pipe merged into 2.25" pipe. These pipes are like the woman that you don't take home to Momma: curvy, with a throaty tone, and they scream when you drop the hammer. Twisted Sisters are also available for right-side drives.



Thumpers     $575


2.25" short chopper style pipes. Just as the name implies, these pipes have a very distinctive thumping tone to them. If you want to be heard these are the pipes for you.



Mojos     $425


Do you like drag pipes but hate seeing the exact same ones on every bike at the watering hole? Maybe it's time to get some MOJO on your ride! For twin cam applications, Mojos will fit deuce and wide glides. Fits stock bikes tire size 200 and under



Slammers     $525


Slammers are long and lean and specifically designed for a Texas Iron Horse chopper. Right side drive only. Comes with built-in heat shields


Crossfires     $1,300


Special Edition (only 50 will be produced). These are the absolute Mack Daddy in our line, built for those who want something truly unique. There will only be fifty sets built and each set is numbered, stamped, and comes with a certificate of authenticity. Heat shields are included also.



Hellfires     $625


Hellfires are a short nasty obnoxious pipe! If you don’t want raw V-Twin sound then stay away from these. They are not for the faint at heart!




Assassins     $650


Assassins are the perfect Softtail pipe. Low deep sound that opens up in mid-range throttle. These pipes extend beyond the rear floorboards so there are no problems with hot passenger feet! This design is truly unique as the front cylinder pipe runs on top of the rear cylinder pipe.




HellRaisers     $850


HellRaisers are an awesome performing 2 into 1 pipe. These were originally designed for the Street Glides only but due to the response we have gotten from this pipe, we now offer them for Softtails and Baggers. We can also custom build this pipe for most any cruiser application. They produce a nice rumble tone at steady RPM but really open up under hard throttle. The low end and mid range torque is unreal!



HangOvers     $850


True dual bagger pipes, these are 16 gauge, 1.75" into 3.5" slip-on that can come either out the side of the bags or out the back. We put two staggered baffles in the tips to produce the perfect sound and performance. Designed to fit either Evo or Twin Cam motors, with or without oxygen sensor bungs. Requires a Ceramic finish.