One of the first things most people do shortly after they get their new motorcycle is start to modify the engine. In the time honor tradition of Harley-Davidson, the first thing to go on most bikes are the stock mufflers in an effort to improve the sound. This is usually the first in a long list of changes to the engine. Changes to the carburetor and ignition system also rank very high on the first to change list. These changes are done to improve the performance of the There are many companies out there that are competing for the dollars that Harley owners are willing to spend on their bikes. As an owner, you will be bombarded with a vast array of promises, claims and inaccuracies in an effort to get your money. Reading between the lines on many of the performance claims can be bewildering. Does the Harley-Davidson world need another stock engine modification article? I decided it does, since the results obtained by the engine upgrades listed here provided significantly better results than those

documented by the popular magazines aimed at the V-Twin crowd. Stage One engines involve no internal changes toAll modifications are made by bolt-on changes to external componentsThese components include air cleaners, carburetors, exhaust systems andNo special tools or training is required to perform these modifications, although it is recommended you are comfortable working on your own motorcycle. Over the past several years we have installed and tested many manufacturers components. The list of parts used in building the ultimate 'bolt-on parts' engine is the end result of this testing. The best and least expensive of the individual components was selected and tested as a single package. All the parts used are readily available through your Harley-Davidson Dealer except for the spark plug wires, which can be ordered directly through Magnecor. The components have installed and tested on a variety of bikes. All components were installed according to the manufacturer

Items 1 to 30 of 33 total H-D Agitator Floating Brake Rotors - Chrome Inner Spider with Raw Stainless Outer Rotor - 41500004 H-D Chrome Voltage Regulator - 74622-09Hepa Air Purifier In Grow Room H-D High-Output Alternator Kit - 29985-87Boerboel X Bullmastiff Puppies For Sale H-D Machete 16 in. Clawfoot Tub Shower Rod Home DepotFront Wheel - 43300372Rear Wheel - 40900371 H-D Machete Billet Sprocket - 42200069 H-D Premium Oil Cooler Kit for Sportster Models - 62996-07A H-D Screamin Eagle 10MM Phat Spark Plug Wires - 31600054 H-D Screamin Eagle 10mm Phat Spark Plug Wires for Softail - 32359-00C H-D Screamin Eagle Chisel Extreme Billet Air Cleaner Kit - 29400124 H-D Screamin Eagle Extreme Billet Air Cleaner Kit - Chisel - Cut Back Gloss Black - 29400123

H-D Screamin Eagle Heavy Breather Elite Performance Air Cleaner Kit in Black - 29400172 H-D Screamin Eagle Heavy Breather Elite Performance Air Cleaner Kit in Chrome - 29400173 H-D Screamin Eagle Heavy Breather Performance Air Cleaner Kit - 29264-08 H-D Screamin Eagle Heavy Breather Performance Air Cleaner Kit in Black - 29006-09B H-D Screamin Eagle Heavy Breather Performance Air Cleaner Kit in Chrome - 29253-08B H-D Screamin Eagle Hydraulic Cam Chain Tensioner Plate Upgrade Kit - 25284-11 H-D Screamin Eagle Jet Black Muffler Heat Shields - 65400078 H-D Screamin Eagle Quick-Install Pushrod Kit For Twin Cam-Equipped Models - 17997-99A H-D Screamin Eagle Round Sportster Stage 1 Air Cleaner Kit - 29000019A H-D Screamin Eagle Stage I Air Cleaner Kit - 29400234 H-D Screamin Eagle Street Cannon Performance Slip-On Mufflers - 64900186A H-D Screamin Eagle Street Cannon Slip-On Mufflers - Sportster Shorty Dual - 64900208 H-D Screamin Eagle Street Performance Slip-On Mufflers- Sportster Shorty Dual - 80503-07

H-D Screamin Eagle Tuner Cable Kit - 32184-08A H-D Screamin Eagle Tuner Cable Kit - 41000018 H-D Screamin Eagle Twin Cam Performance Race Clutch Hub Kit - 37976-08A H-D Screamin Eagle Twisted Slot Heavy Breather Filter Cover - 28742-10 H-D Screamin Eagle Ventilator Air Cleaner - 29490-09 H-D Screamin Eagle Ventilator Elite Air Cleaner Cover - 61300516 Items 1 to 30 of 33 total knows how to build a high hp Spotser for the street.  an NRHS 1250 kit, NRHS stage 1 Thunderstorm heads, and a Hurricane air cleaner as well as SE 536 cams, HSR 42 carb, Daytona Twin Tech ignition and a Thunderheader this bike is making close to 98 hp at the rear not only has a great looking custom bike but he also has a Axtell 90" kit to make sure it goes just as good as it looks! Yoshida from Japan has transformed this great looking bike into a monster with an NRHS 1250 kit and stage 2 XB heads along with numerous suspension mods and a great custom exhaust. 

in the US Army stationed in Korea and he has built this great chopper from a stock 883.  It sports stage 2 XB heads and an NRHS 1250 kit along with SE 536 cams and a Twin tech ignition. turned an already fast Buell X1 into a corner carving monster with headwork fom NRHS along with a Forcewinder intake. English's beautiful Nightster is now even better thanks to progressive 412 shocks and a very subtle Hurricane flow air cleaner addition. the cars in their place at his local drags by winning the first time outStage 2 XB heads, an NRHS 1250 kit, SE 575 cams and a Mikuni all helped put him in the winners circle 2004 streetfighter started life as a docile little 883.  installing a Storz bodywork kit he decided it needed to go 'just' a bitIt now has an Axtell 88" kit along with stage 3 STD heads and some Redshift 585 cams.  Needless to say it is tough to keep the front wheel on the ground!! Beautiful S3 Buell is ready to tame the Dragon with a set of Stage 2

Thunderstorm heads and a high compression 1212 engine kit. Sportster is ready to surprise a few Big twin owners with a set of stage 2 heads and a 1250 kit. I just hope he doesn't plan on having any definitely knows how to go Old School with this beautiful rigid! Now it will really fly with the addition of an Axtell 90" high compression engine kit, Stage 3 heads and Redshift cams. I hope he has not only knows how to make a bike look great but also how to make itEquipped with an Axtell/NRHS 88" kit and stage 3 heads both of which have been Diamond Cut this beauty is just waiting to rip your has turned his 883 into one sweet ride.  Now  she moves along very nicely thanks to a NRHS 1212cc kit and XB heads along with a supporting cast of 536 cams, Hooker pipes and an NRHS Hurricane Flow air knows how to make a unique Sportster.  And with the addition of an NRHS/Axtell 1250 kit, NRHS stage 3 XB style heads, Mikuni 45 carb and

more this bike not only shows but goes! Sportster features an NRHS 1250 kit, NRHS stage 2 04 XL1200 heads, ignition module and more! ready to hit the twisties in California with this beautiful Buell S3. And this bike is ready for them with an NRHS/Axtell 1250 kit, NRHS stage 2 heads,  SE 575 cams, roller rockers and a NRHS billet motor mount to keep all that power in place! Jim Hopcus has one badThis beautiful ride features a set of NRHS stage 2 heads, an NRHS 1250 kit, Rhinehart pipes, 42mm Mikuni, RevTech ignition and even aCheck out the custom powder coated cylinders in red also! 1996 Sportster features a 116hp engine from the NRHS shop. goes as good as it looks! Dan Dunn not only sells you the parts for your bikes but he also rides this beautiful 1996 Buell S2 Thunderbolt that features a 101hp NRHS built engine. It appears as if Dan Dunn is addicted to custom painted Buells as he also owns this 2000 Buell X1.