A2Speed’s HEMI Performance Shop Builds
Looking for a reliable, affordable, and knowledgeable HEMI performance shop? A2Speed is a full service installation shop, with state of the art equipment, and industry leading experience. Our team consists of individuals like Dave Kasper, a former Chrysler calibration engineer and certified viper tech, with over 30 years of proven experience on the Dodge / Chrysler platform. Dave Kasper was the originator and continues to be the leader in late model (GEN 3) HEMI tuning. A2speed team also consists of talented people like Eric Hruza, founder of the Arrington Performance aftermarket program, ShopHEMI.com, and served as that company’s president from its inception through early 2015. Eric is A2Speed’s CEO and heads up new product development. Don Yates, the sales manager, has served customers in the late model HEMI community for years with his deep knowledge of the best combinations to extract power at the best prices.
A2Speed utilizes partnerships with other high profile, leading edge HEMI companies like Ray Barton Racing Engines, Thitek Performance, Molnar Technologies, Edelbrock, SCT, and many others to bring to market products like our full line of HEMI stroker engines. What does that mean for our customers? Well, every product we offer is backed by years of HEMI performance knowledge, and that many of pioneers for the HEMI industry stand behind our products performance and reliability.
A2Speed's 2018 Dodge SRT Demon Package
Here at A2Speed we are proud to unveil our 2018 SRT Shop Demon! We are the first company in the world to get one of these beast on a Chassis Dyno! We just did a few baseline pulls which made 724RWHP stock! We will also be doing some other modifications in the near future. Check back soon for more details.
Toymakerz Edelbrock Supercharged 2015 Challenger RT
Toymakerz teamed up with A2Speed to build a one of a kind Dodge Challenger featuring some very special Edelbrock go fast parts. David Ankin approached us looking to take a bone stock 2015 Dodge Challenger RT to the next level, and we knew just how to make that happen.
Billy's 2018 Charger Hellcat Stage I Package
Billy brought us his 2018 Challenger Hellcat looking to upgrade to our proven A2Speed Stage I Hellcat Packages. The results we astounding with this bad cat delivering 830+RWHP to the road. Check out Billy’s page for more Build Info, Pictures, Dyno Video and More!
Matt's 2016 Challenger Hellcat Stage II Package
Matt brought us his 2015 Challenger Hellcat looking to make some huge gains in our A2Speed Stage II Hellcat Packages. The results we astounding with this bad cat delivering 910+RWHP to the road. An overall gain of 270+RWHP this build is not to be slept on! Check out Matt’s page for more Build Info, Pictures, Dyno Video and More!
Rodney's 2013 Dodge SRT8 Challenger Package
Rodney brought us his sons car looking to give him some extra horses. Needless to say we able to do just that, this challenger is putting down 860+RWHP! Check out Rodney's page for more Pictures, Dyno Video, Detailed Performance Modifications list and More!
Adam's 2016 Charger Hellcat Stage I Package
Adam brought us his 2016 Hellcat Charger to upgrade to our proven A2Speed Stage I Hellcat Package. As always the results did not disappoint and Adam was very happy with the gains of his Hellcat! Check out his page for Power Numbers, Pictures, Dyno Video and More!
Thien’s 2016 Hellcat Charger Stage I Package
Thien brought us his 2016 Hellcat Charger to unleash some extra power to his 6.2L Supercharged SRT and we delivered! He had us install one of our proven and increasingly popular A2Speed Stage I Packages and the results were mind blowing! He is making 825+RWHP on pump gas and 905+RWHP on Q16 and a pulley ring swap! Check out his page for more info, build specs, pictures and dyno video of this nasty Hellcat!
Dennis’s 2016 Hellcat Challenger Stage I Package
Dennis brought us his 2016 Hellcat looking to upgrade to our proven Stage I packages and a Q16 tune as well and as always we delivered! The gains we massive as his Q16 tune ended up gaining 200+RWHP! Please check back soon for Dyno Video, Pictures and more build info!
Bill’s Forged 392 Supercharged 2017 Challenger Scat Pack
Bill brought us his 2017 Challenger Scat Pack looking to make some extra power and upgraded to a Forged 392 and a Edelbrock 2650 Supercharger just to name a few parts of the build. The combination did not disappoint as he is now cranking out 750+RWHP! Check out his page for more information on his build as well as pictures, dyno graphs, and more!
Robs's 2011 Supercharged R/T Challenger with Nitrous Outlet’s Plate System
Rob sent us his 2011 R/T Challenger for a serious make over in the engine department. He threw in a Hellcat Short Block and added a Edelbrock 2650 Supercharger on top of it; As if that wasn’t enough, we added a cherry on top in a Nitrous Outlet Plate System for some extra go-fast juice! As always we delivered a ridiculously happy car to a ridiculously happy customer! Check out Rob’s Hemi Shop Build Page for more pictures, build info, Dyno Video/Graph and more!
John's 2016 Stage I Hellcat Package
John drove us his 2016 Hellcat down from Ohio to upgrade to one of our A2Speed Stage I Hellcat Packages and a few extra upgrades as well! Needless to say John left a very happy customer. With a gain of 150RWHP+ this Cat definitely made some gains! Check his page for Dyno Video and more info on John’s build!
Eddie’s 2016 Stage I Hellcat
Eddie brought us his 2016 Hellcat for one of most popular packages in our Stage I Hellcat Package and once again delivered some serious power! With a gain of 190+RWHP this one did not disappoint. Check out his page for more information on this build.
Jim’s 2016 Stage I Hellcat
Jim brought us his 2016 Hellcat looking to make 800+RWHP and we did just that with our A2Speed Stage I Hellcat Performance Package! Video and Dyno Graph coming soon check back for weekly updates on this build and other builds as well!
Kenny’s 2016 Supercharged SRT 392
Kenny came to us looking to tune and gain some more horses with his 2016 SRT 392 Dodge Charger and the team here at A2Speed were able to do just that for him. He also added one our A2Speed Billet Drop In Fuel System, a set of Hellcat Heads, a Magnuson 2.75" Upper Pulley, and Forged CP Carillo Rods and Pistons as well. Video and Dyno Graph coming soon check back for weekly updates on this build and other builds as well!
2018 Dodge Charger Scat Pack Tuned By A2Speed COMING SOON
Thanks to Steve White Motors for lending us this beast; We here at A2Speed, were able to tune one of the first 2018 Dodge Charger Scat Packs In-House! Video and Dyno Graph coming soon check back for weekly updates on this build and other builds as well!
Kayse’s 2016 Stage I Hellcat
Like many Hellcat owners Kayse brought his to us for one of our A2Speed Stage I Hellcat Performance Packages. Video and Dyno Graph coming soon check back for weekly updates on this build and other builds as well!
Bob’s 2015 Stage I Hellcat Stage I Hellcat
Bob came to us looking to make some more power with his Hellcat and we did just that. Our Stage I Hellcat Performance Package did not disappoint and delivered once again! Check out his build for more info and Dyno Video
Quinntin’s Whipple Supercharged 2013 300C Coming Soon!!! COMING SOON
Quinntin came to us looking to make some power on 2013 300C and we were able to do just that. He got a Whipple and some extra go fast parts as well! Dyno Graph coming soon check back for weekly updates on this build and other builds as well!
Mike’s 2015 Stage I Hellcat COMING SOON
Mike came to us looking to upgrade his 2015 Hellcat with one of our A2Speed Stage I Hellcat Performance Packages, and once again it did not disappoint! Video and Dyno Graph coming soon check back for weekly updates on this build and other builds as well!
Will's B-5 Blue Pulley & Injector Swap
Our Customer came to us looking to make some extra power with a Supercharger Pulley and Injector swap. Which Needless to say he left a very happy customer. Check his page for Dyno Graph and more build info!
Jonathan’s Stage I Hellcat
Jonathan came to looking to take his Hellcat to the next level and we did just that! He got one of our A2Speed Stage I Hellcat Packages along with a Legmaker Hellcat Cold Air Intake. Needless to say he easily made the jump to 800+RWHP. Check out this build page for more info and pictures of this build!
Hellcat Challenger with A2Speed's Stage I Hellcat Package
Our customer came to us looking to unleash some extra power on his 2015 Hellcat and as well we delivered. He purchased one of our A2Speed Stage I Hellcat Packages paired with a Legmaker Hellcat Cold Air Intake and was able to gain 100+RWHP. Once again another happy customer and another badass Challenger on the streets thanks to A2Speed!
2011 6.4L Shaker Challenger
Our Customer brought us his 2011 6.4L Shaker Challenger with one thing in mind, sound! With our expert knowledge here at A2Speed we were able to deliver the sound he was looking for. We pair one of our custom Comp Cams with a Corsa Extreme Cat Back Exhaust System and the results were great! Check out Tim's page for more details on this bad Challenger.
007’s 2013 Shaker Challenger with A2Speed’s In-House Chassis Dyno & Custom Tuning
James brought us his 2013 Challenger RT to maximize his prior performance upgrades. He added a Edelbrock 2300 Supercharger Kit, Kooks Long Tube Headers, and one of our A2Speed 85MM Throttle Bodies. All we did was add a Custom A2Speed Tune with our In-House Chassis Dyno and once again another happy customer and car out of our doors!
2017 T/A 392 Challenger with A2Speed In-House Chassis Dyno & Custom Tuning
Steve White Motors brought us this beast for a custom tune on our in-house chassis dyno after their install. They strapped on a Magnuson 2300 Supercharger, Drop Inn Fuel System and a pair of Kooks Long Tube Headers.
1000+ RWHP ProCharged 2015 Challenger with Ray Barton/A2Speed’s 426 Long Block
Johnny came to us looking to release the beast in his 2015 Challenger and man this thing is vicious! This ended up being a fairly extensive build which includes one of our Ray Barton/A2Speed 426 Long Block Engines topped with a ProCharger F1-A-94 Supercharger. This build is not for the faint of heart being that this monster is thowing down 1000+RWHP. Johnny was more than thrilled with the outcome of choosing our shop for his custom build!
Hellcat Challenger with A2Speed’s Stage I, Hellcat Package
Our customer brought us his 2015 Hellcat Challenger looking to upgrade to our stout Stage I Hellcat Performance Package as well as to throw in a extra upgrade in a Hellcat Legmaker In-Take. As always our increasingly popular Stage I Hellcat Package did not disappoint with a gain of 150+RWHP! Once again another thrilled A2Speed customer out of shop our doors!
Hellcat Challenger with A2Speed’s Stage I, Hellcat Package
Our customer brought us his 2017 Hellcat Challenger looking to upgrade to our stout Stage I Hellcat Performance Package as well as to throw in a couple of other go fast upgrades; Which include a Hellcat Legmaker and a DSS 4” Aluminum Driveshaft. As always our increasingly popular Stage I Hellcat Package did not disappoint with a gain of 180+RWHP! Once again another happy A2Speed customer out of shop our doors!
2013 5.7L RT Challenger Edelbrock Supercharged
Our customer came to us looking to slap some extra go fast goodies in his 2013 5.7L RT Challenger. He topped it off with a Edelbrock E-Force 2650 5.7L HEMI Supercharger and added additional upgrades as well. This RT Challenger had a great gain in power while still keeping amazing street driveability.
Hellcat Challenger with A2Speed’s Stage 1, Hellcat Package
This Hellcat came to us looking to pick up more power and get a little closer to its potential; Of course we delivered! This is one bad Hellcat that burns up the street and ended up cranking out 840+RWHP. Our Hellcat Staged Packages know how to unleash staggering power on the streets as well as the track!
Hellcat Challenger with A2Speed’s Stage 2, 4.5L Whipple Hellcat Package
Our customer was looking for a 93 octane 850 RWHP daily driver. Our stage 2 Hellcat package was the logical option. This build features a Whipple 4.5L Hellcat Supercharger, Fore fuel system, and a few other goodies! We are absolutely impressed with these 4.5L units, they provide incredible power right from the get go, and leave so much room to grow! Give us a call today to reserve your stage 2 Hellcat package today!
2016 Hellcat Charger with A2Speed’s Stage 2, 4.5L Whipple Hellcat Package
This Hellcat came to us looking to unleashed the team of horses under its hood. The owner is going with our stage 2 Hellcat package with the upgraded cam option. It turned out to be a monster. This kit includes a Fore Duel pump fuel system, the Whipple 4.5L Hellcat supercharger, and an A2Speed custom cam. The customer also got a TCE-15 inch break conversion and a set of sticky Mickey Thomson slicks.
Eric’s Dodge SRT 392 Dodge Charger Bolt On Package
Eric brought his dodge charger up to us for a few minor bolt on upgrades. Eric did’nt want to unlock the PCM yet, or have to get the vehicle tuned, but still wanted a few more pony’s. We made it happen for him with an 85mm A2Speed Billet Throttle Body, and a Legmaker True Cold air intake. We got a 40 WHP gain for under $1,000 without any tuning required!
Rick’s Dodge Challenger Shaker R/T Hellcat Short Block Conversion
Rick decided it was time for more power out of his supercharged shaker. The path he decided to go was to beef up his bottom end, add a fuel system, and turn the boost up. He made the jump to a Hellcat short block because it added more displacement while allowing him to run more boost. One more happy Hellcat short block swap customer, and another bad ass challenger on the streets!
Whipple Supercharged Dodge Challenger RT
This Whipple Supercharged Dodge Challenger is in for a custom A2Speed Chassis Dyno Tune. It came out very clean and OEM like. This build is prefect for any 5.7L HEMI owner that wants more power but doesn’t want to spend an arm and a leg to get there. With just this 2.9L Whipple supercharger this 5.7L is putting down over 500 RWHP. Best of all the power band is extremely linear and the supercharger is extremely well behaved. Boost is predictable and can be easily controlled with the throttle..
Al & Nancy’s 2015 Hellcat Dodge Challenger Head & Cam Upgrade
For this build we have one of our Owners personal car’s in the shop. Al already had an upper and lower pully, with larger injectors installed. We are taking it to the next level with our A2Speed / Thitek ported heads, and an A2speed custom grind camshaft by Comp Cams.
Carl’s 2013 R/T Challenger Build with A2Speed's first 105mm HEMI Throttle Body
Carl came to A2Speed looking for help on a custom throttle body set up for his build. Well as it goes with most Mopar guys Carl had a few other projects in mind. He’ll be leaving our shop with a custom Throttle Body, and a few other powertrain goodies as well!
John’s 6.1L Based 426 Whipple Supercharged Challenger Coming Soon
John came to us looking for a Ray Barton built engine 426 engine that can handle anything you throw at it. We are giving him just that, with a custom built 426 HEMI featuring custom Diamond piston’s, billet main caps, and much more. Top that with a Whipple supercharger and you have a recipe for one bad ass Challenger.
Big Red; Luke’s Optima Ultimate Street Car!
If you ever doubted that a Challenger can handle it’s self on a road course, then you need to check out BIG RED. Luke of Steve White Motors has trusted A2Speed with his Optima Ultimate Street Car for everything ranging from bolt on’s, a full set of our Coil Over Suspension, and Custom Chassis Dyno Tuning. He brought his car up to us this time because he was having limp mode issues with a competitor’s cast VDO style 85mm true bore throttle body. It was replaced with one of our true 90mm Magneti Marelli throttle bodies and got a custom Chassis dyno tune. The results netted Luke an additional 36 HP over our competitors 85mm and that’s only half the story, at 3850RPM he gained a staggering 88 HP. When considering upgrading throttle bodies, do yourself a favor and do it right the first time. A2Speed offers real gains, no false size advertising, no magic mystery sauce, just results.
Greg's 5.7L to Hellcat Short Block Swap
Greg brought his already supercharged 5.7L Dodge Challenger R/T to us looking for more power. After reviewing the possibilities he decided to try something that hadn’t been done before, swapping a 5.7L short block with a 6.2L Forged Hellcat Short Block. He kept the phase 6 ported 5.7L Eagle heads, the custom blower cam, and rest of his prior installed accessories.
A2Speed has every HEMI upgrade you could imagine. Search through a catalog of our favorite performance upgrades for each engine platform.SHOP NOW
Superchargers are the most cost-effective way of adding horsepower to a modern HEMI engine. We carry many different brands and types of superchargers.SHOP NOW
HEMI crate engines are a great addition to any “Resto Mod” project. We can find a way to HEMI swap just about any vehicle!SHOP NOW
- About Us
- What We Do
- How We Do It
- Our Quality
A2Speed’s GEN III HEMI BackgroundMany of us at A2Speed have been working on the Gen III since its inception. As a team we are immersed in the Hemi world. We own, drive, modify, race and occasionally…break them. We use this experience to create SOLUTIONS, not just parts. Automotive engineering has advanced such that it is often difficult to improve on the work done by the OEMs. Difficult, not impossible. Utilizing advanced 3D modeling, CFD and stress simulations coupled with rapid prototyping, allow for the development of specialized parts that would be impractical at OEM volumes. Solutions validated with real world testing. Craftsmen level quality; and because we don’t have the layered overhead, our prices are often at or below the OEM price.
Advanced Aerospace Grade MachiningProduction manufacturing is performed by partner companies that have proven track records for quality and timely deliveries. We look for certifications such as ISO-9001 and AS-9100 along with ITAR and GIDEP registrations. Several of the companies we work with regularly supply major aerospace firms and the DOD. Why use outside machining services? So that you get a better part at a better price. By utilizing only the machine cycles we need, and leveraging the superior skills and years of experience, A2Speed can give you exceptional quality at truly affordable prices.
Our company is guided by a set of core values and beliefs
- We know that we are a community, not a “market”.
- We recognize that we serve this community at the pleasure of its members.
- We understand the passions, challenges and rewards that drive the enthusiast.
- We believe that function drives form, improved performance improves appearance.
- We know that one company can’t do it all, therefore we value partnerships.
How This Applies to Our Customers
- We never settle for anything less than perfection.
- All of our parts are put under intense testing before being released to you
- You can feel secure because we use both our closest partners and our own cars to test A2Speed’s products
- Finally we know that just having a great product isn’t enough, thus we strive to offer superior customer service, and the lowest prices. Giving you the best experience possible from start to finish.
A2Speed 6.4 to 426 Short Block SpecsDisplacement: 426 CID (7.0L)Bore: 4.090Stroke: 4.050Boosted Compression Ratio: 9.8 : 1Naturally...
Gain up to 400 HP. This wet nitrous plate system comes out of the box ready to spray up to 200 HP but is capable flowing up to 400 HP...
Edelbrock’s all new 2650 HEMI supercharger kits.Edelbrock has brought a whole new line of HEMI supercharger kits with their all new...
Why We Recommend American Racing Headers Exhaust SystemsAmerican Racing Headers is an industry leader in the aftermarket exhaust...