Hammer Performance - for All Your Harley Davidson XL Sportster and Big Twin Performance Needs
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Dyno Room and Results for Harley Davidson and Buell Performance Products and Services from HAMMER PERFORMANCE


New Harley Davidson and Buell Performance Products from HAMMER PERFORMANCE


Garage Sale Products from HAMMER PERFORMANCE


Harley Davidson and Buell Performance Photo Gallery


Pictures of Harley Davidson and Buell Performance Cylinder Heads


Pictures of Custom Air Hammer Air Cleaners








EXHAUST SYSTEMS

For Sportster & Buell


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Patriot Defender - From $345
FREE Shipping in the Continental U.S.



Patriot Defender Exhaust System for Harley Davidson Sportster Models

This is one of our favorite pipes for rubber mount XL's. Why? because this pipe delivers the goods and at a very reasonable price. It features:

  • Outstanding performance (see the dyno sheet below)
  • Fully welded, stainless steel construction
  • A butterfly valve in the baffle to adjust the sound level
  • Sensor bungs with plugs included
The first time we pulled one of these out of the box, we weren't expecting much, given the price. What a surprise, the pipe is beautiful and very well made. Then we put it on the dyno and our jaws hit the floor. Holy cow this thing performs!


Patriot Defender Exhaust System Dyno Chart on Harley Davidson Sportster 883 to 1250 Conversion


More details on this build here. This would be an excellent result on any XL with a 1250 kit and ported heads, but the fact that we pulled this result through small valve 883 heads shows what a terrific performer this pipe is and how well matched it is to our head porting and cams.

The above result was done with the baffle butterfly in the fully open position, and that's where we've found the pipe to perform the best. Be forewarned, the pipe is on the loud side when the butterfly is fully open. When fully closed, the pipe is barely louder than the stock Harley exhaust. The tune changes radically, however, and you will need to remap or rejet. We are developing TTS and Powervision tunes for this pipe, please contact us for a starting point tune for your bike.


Patriot Defender Baffle Control This is the baffle butterfly position control
It's locked in place by a piece of wire
Patriot Defender Baffle Control The baffle butterfly in it's full open position
It's loud when set here but makes a lot of power

The Patriot Defender is available for 04-present XL883 & XL1200 models in your choice of polished stainless with chrome heat shields, black ceramic coated stainless with black heat shields, or black ceramic coated stainless with chrome heat shields. It fits with forward or mid controls.

Note: These pipes are drop shipped from the manufacturer in the lower 48. If you are outside the lower 48, contact us for a shipping price.

Note 2: The polished stainless version will come out of the box looking almost like chrome. However, over time the stainless will turn a goldish color. This is normal and does not indicate a defect with the product. The chrome heat shields cover the head pipes only and leave the muffler exposed, so you can expect a goldish tint to the muffler over time on the polished version of the pipe.

Notice: HAMMER PERFORMANCE will no longer be accepting orders for this pipe for shipments to the lower 48, and we have removed the add-to-cart buttons from this page. If you're in the 48 contiguous United States, please order the pipe direct from the Patriot web site. However, if you're outside the lower 48, Patriot won't ship to you, but we will. Please contact us to purchase one of these pipes. We'll generate a quote and email it to you, with the shipping charge included. Please be sure to let us know which color you'd like. Thank you.



Patriot Defender Exhaust System for Harley Davidson Sportster Models
Patriot Defender Exhaust in Black Finish with Black Heat Shields

Patriot Defender Exhaust System for Harley Davidson Sportster Models
Patriot Defender Exhaust in Black Finish with Chrome Heat Shields


Torque Hammer - From $995


Torque Hammer Exhaust System for Harley Davidson Sportster Models

Straight from our friends in the Netherlands, the TORQUE HAMMER pipe from Twin Motorcycles is a very unique pipe for your Sportster that performs superbly. We put this pipe through the paces on our shop mule 2007 XL 883 and were astonded by the results: the little 883 pulled only 46hp stock and jumped to almost 60hp with the addition of a Torque Hammer pipe, Air Hammer Air Cleaner, and TTS Mastertune. Then we ported the 883 heads and added a 1250 kit and Impact 560 cams and broke 100 horsepower at the back wheel! Click the thumbnails below to see these most impressive dyno results.



Torque Hammer Exhaust on Stock and Modified Sportster
Torque Hammer Before and After 1250 Conversion
Torque Hammer Exhaust on Mildly Modified 1250
Torque Hammer on a Mild 1250 Build

The Torque Hammer pipe is available for XR1200 or 2004-up XL883/XL1200 models. It is constructed of stainless steel and is available in your choice of polished or black ceramic finished. The baffle is removable and the dyno sheets above were done with the baffle in place. We found that removing the baffle flattened the torque curve but made slightly less horsepower on the very top. The XL version works with forward or mid controls and also passenger footrests and saddlebags. All versions come with a TTS Mastertune calibration (TTS Mastertune sold separately) and carry a full 3 year warranty. Note: the polished version will have a chrome like appearance when new but will gradually turn a golden color, this is normal for a stainless pipe.


Torque Hammer Exhaust for Sportsters
For 2004-present XL883 and XL1200 models
Select Finish
For XR1200 models
Select Finish


Torque Hammer Exhaust System for Harley Davidson Sportster Models
Torque Hammer Exhaust in Polished Stainless Finish on XL model

Torque Hammer Exhaust System for Harley Davidson Sportster Models
Torque Hammer Exhaust in Black Ceramic Finish on XL model

Torque Hammer Exhaust System for Harley Davidson Sportster Models
Torque Hammer Exhaust in Polished Stainless Finish on XR model


Samson Powerflow III Caliber - $599.95



Samson Powerflow III Caliber Exhaust System for Harley Davidson Sportster Models

Samson has always been a favorite of ours simply because they are focused on performance as much as looks and sound. We've had numerous customers achieve terrific results with their Caliber series of pipes. The Powerflow III is the third generation of these pipes and the most powerful yet. Click below to see dyno results from this very impressive pipe on both a stock 883 and after typical mods. This pipe really performs!



Samson Powerflow III Exhaust on Stock and Modified Sportster
Samson Powerflow III Before and After 1250 Conversion
Samson Powerflow III Exhaust on a Mildly Modified 1250
Samson Powerflow III on a Mild 1250 build

The Powerflow III is available for 04-present XL883 & XL1200 models in your choice of chrome or black, and is one of the more reasonably priced premium 2 into 1 systems on the market. It fits with forward or mid controls.


Samson Powerflow III Exhaust for Sportsters
For 2004-present XL883 and XL1200 models
Select Finish


Samson Powerflow III Caliber Exhaust System for Harley Davidson Sportster Models
Samson Powerflow III Exhaust in Black Finish

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