I started my drag racing journey with my 2018 challenger hellcat last year and found HHP online and on youtube, they have great videos and onlinestore for everything I needed. Im over 8hours away from them and the car is making allot of power and Im having work done here locally and some tuning is needed done and they have been helpful all the way through. Ive spent a small fortune with them. One stop shop!! I highly recommend them!

Had a comp cam and longtube headers installed at HHP this last week found them through online forum highly recommended, drove 2 1/2 hrs each way to get the work done and was it ever worth it!!

Best Gen3 Hemi Experts Around. 3.91 Getrag 😁😜

Web site was good but Ive never been there. Its my idea they are a really good shop. They are better in there prices I noticed..

I brought my 5.7L Hemi T/A in for a Comp 274 cam and tune, it was all done in a timely manner and the car came out running and sounding great. Josh S got more power out of my car than I even expected, there was a slight issue with the transmission tune and they had no problem taking another look to iron it out. I have asked many questions via email with Josh W and he has answered every single one professionally and they genuinely want to get the best out of your car. Currently in for a torque converter, and will be back for a ProCharger, stroker, and 8HP90 swap and will go to HHP everytime.

I have been a customer for the past 4 years. HHP has done the entire build of my ProCharged Shaker R/T. Their work is superb and I would consider them the best of the best. My deepest thanks to Josh and his crew, they are all true professionals.

This company is the best for people looking to improve the performance of there vehicle. Also all the peosonal that work there are the elite of all in any company they have the knowledge and not have to look up anything and get back to you. Total professionals.

This shop is amazing!! I modded my Jeep Trackhawk about a year ago and couldnt be happier. I will use no one else.

Josh and his team are true professionals. The turn around was only 2 days and the car is now scary fast. If you have a Hellcat Redeye or Demon HHP is the place to go. Also Josh will tune your car as safe and reliable as possible without compromising your motor. #TUNEDBYHHP

HHP has the best prices, shipping is unbelievably fast, and Josh S is great at tuning and communicating. Best shop you could possible do business with

Best shop in the world,best customer service,if u want ur hemi to be the best then hhp is where to go,if u do ur research u can see all the fastest Hellcat’s in the world come from there shop,plus owner/tuner josh haves the fastest Hellcat in the world and holds the title for the last 3 to 4 years strong

No help at all. They were good at one time

HHP had all the parts I needed for my car. Fast delivery and great communication.

Just wanted to say these dudes are the real deal josh helped me with all my questions and got me situated!! Love these guys. My AWE exhaust is the best sounding exhaust in the world! Will definitely be using HHP again. thanks!

It was a great experience. I never seen a car dyno in person. I would recommend any hemi owner to go to hhp they woke my car up its a blast to drive

Great Experience and Customer Service

Had a good time at the location, these guys know their mopars!

Best prices & customer service

These guys went above and beyond!!

Great shop for Modern Mopar Performance.

I bought my 274 camshaft from them online I originally ordered a different kit but comp cams was taking way to long on the order I emailed them about it they said if I want I can change it for a different kit that was in stock and they shipped it out the very next day it came the same week very very happy with my purchase and they are very responsive with there support.

High quality professional work with affordable cost and quick turnaround. Expert knowledge and outstanding customer service. Couldnt ask for a better shop!

The best shop ever

Hard-to-find OEM parts in-stock, with fast shipping, great prices, and remarkable customer service. So happy I made the purchase - my local dealership in Arizona now has competition from Delaware! Thank you High Horse Performance!

Top notch friendly staff. They know everything about the Hemis and can get you whatever you need from street car to full on race car. Super fast shipping also on parts! Highly Recommend!

Cool guys, 1 of only 3 shops i would ever take my cars too...after disasters with a bunch of others that dont know much about certain imports and muscle cars. They know their stuff and get it done

Excellent service HHP

Quickest Gen 3 Hemi shop on the planet

A little late to post here. In September of last year I brought in my 08 SRT8 for a 160 degree thermostat and 93 Tune. No complaints from me. Great shop and will be returning soon to get my twin brother work done to his car.

Outstanding Service & Staff. Josh also gives free hugs

They are great .. always helpful and reliable

Greg was awesome and very informative

Great customer service. Im in to cars and modifications so most of my parts Ive used have come from this company. Customer service operators have great technical expertise, are patient and very willing to help you find the right solutions.

Asked a question from the contact form on the website, got an answer right away. Finalized my order after their advice and got a tracking number within minutes. Top notch service, thank you.

Originally I had left a bad review on here cause the email tune I purchased from them needs some adjustments and I was not getting a response from them. But they have been super busy and with the restrictions in place cause of COVID 19, Im sure it has made conducting business more difficult. Josh responded to me last week (I almost missed his response cause I have been busy with moving) and even after I had left a bad review was nice and really professional. The funny thing is even with the false knock reading (put long tube headers and catless midpipes on my charger) the car still runs great. Obviously Josh really knows his stuff and is a great tuner. Im excited to see how my car runs once he tunes out the false knock.

The best customer service Ive seen from any company. Obviously their work speaks for itself. These guys are the best.

Just had my 2015 Hellcat tuned and a new driveshaft. From start to finish a great experience. State of the art knowledge and execution. True professionals !Thank you gentleman...

Professional, friendly, one of my favorite shops for sure!

My order was shipped out right away and arrived quickly definitely recommend them

Great people! Very helpful with my whole build. Helped me pick out the right parts for my build. Spot on with everything. Would definitely recommend them and I will definitely be back!

Great people allot of help and great dyno tune on my car as well .. ill be back as soon as done my next build as well

Love the people and how friendly they are. Great to their employees

Great group, very helpful

From my experiences with, and observations of, this group is the epitome of professionalism. Their support of customers doesnt end when your vehicle leaves the shop and they have your money. Ive seen them at the track, when running their own cars, drop what theyre doing to help a customer solve a problem to improve performance. They make you feel like HHP family.

Awesome supplier of modern hemi performance parts. These are the people that will let you know what you need and do not need.

It all starts out with Bruce helping you determine what you need to build your car/truck/suv. This guy sets up everyone from the mild to wild so hes got you covered. Moves along to Tracy the master mechanic putting it all together with his magic hands (dont ask why I say their magic, just trust me). Then finally for the last touch and likely the most important to make the most of your hard earned and easily spent money is Josh. The brains of the operation finely tuning to your desire. One thing to watch here though, youll keep spending money because this going fast thing is addictive.

THESE GUYS ARE THE BEST!!! NOT only did I get what I paid for but SO MUCH MORE! I dealt with Josh and Greg and theyre 2 very knowledgeable and down to earth guys. With HHP you definitely get what you pay for, dont trust your baby with anyone I drove over an hour and a half to deal with the BEST YUP! Give them a call you will be glad you did👍👍

Josh, the owner of HHP, is one of those guys that you can tell has a true passion for what he does and backs it with tons of knowledge of modern Mopars. To anyone looking for a clean, reputable shop with stand up people, look no further than HHP. Josh, you have a customer for life in this guy.

I called for tips on how to build my 345 hemi and got connected with Josh. Must say, super helpful, slightly pricy but at least you know for a fact its gonna be great quality as well as service. Thanks guys.

I got my diablosport and a pcm will do the swap here soon hope it all works out well thank you guys for taking the time and understanding me when I call and ask questions awesome people dont mind the people that leave 1 star you guys are great at what you do keep up the good work

After purchasing my 2018 Challenger Scatpack, I knew I wanted to make some upgrades. After searching for quite some time and getting feedback from people all over the country, I found High Horse Performance. Every time I called, they answered any and all my questions with an explanation as to why they do things the way they do. Ended up getting a few things done including a full tune. I got car back and was so happy with it that Ive sent all my friends there too. You wont be sorry you went there, trust me these guys know their hemi.

High Horse Really Took Great Care Of Me! Unfortunately, I had a tool that broke after using twice - but High Horse went above and beyond to take care of my needs and got me back on the road fast. Thank you High Horse, A +++++

They are always very helpful with information and suggestions when I call. I drive a Dodge and thats their specialty!

Recently purchased weld wheels and 15” conversion kit. I goofed up and ordered the wrong front wheels. Unfortunately I had mounted the tires to the wheels before I figured out my mistake. Can’t send them back and will now have to try to sell on line. I had posted some negative comments about HHP and that was just an over reaction to a frustrating situation. I’ve since deleted all negative posts and apologized to HHP staff. They are a great bunch of guys and can help you out with anything a car guy/gal could need.

A little mis communication at first but joshua got the tunes done as promised and sent then at midnight, some dedication shown there, they should show on there website lead times for tuning to keep the customers informed

I would sincerely like to that Greg, Joshua and everyone at HHP once again for their excellent workmanship on my 2014 SRT8 Challenger. You guys Rock at HHP!

Great guys ... Had a Minor misunderstanding and they Immediately Fixed it made things Right... Highly recommend..

I was looking at a used 300 and I asked them about 1000 questions and they answered them all and were extremely helpful. Great guys and they do some amazing work

If you have a Mopar this is the place to get more horse power. Sales staff will talk to you and give you a written estimate. Get it done a little at a time or all at once.

If any of you read these reviews and stumble across the 1 star reviews......ignore them. I have dealt with HHP several times. From rebuilds to new engines. Their work is e.x.c.e.p.t.i.o.n.a.l and their customer service is unmatched. I am rather new to Mopar products, but they a.l.w.a.y.s took the time to explain the ins and outs of every single variation you are contemplating. When you call for technical assistance, I usually got Greg, they are patient and unmatched in knowledge of the various Mopar models they deal with. Right down to the model years and the different components you need to either change, bolster, or leave alone. They give you options and they show you the best way to handle your requirements. They do it fairly and are completely transparent throughout the process. They tell you what they can do and what is not advisable. I have found there are zero blind spots with HHP. When you go the spend the money on the types of cars they work on....you do not want surprises. They minimize those and are up front about things. Simply put: my experiences with them have altered how I will purchase vehicles in the future. Ill buy used and let them redo or replace the engine. Pound for pound......you will spend less money and get a far superior product when it is all said and done.

We order parts from them all the time or we do work for them sometime and they are very nice people and they do fantastic work

These guys are master craftsman - their standards exceed even my own!

Cant say enough good things about HHP. GREAT service and couldnt be happier with the work

Seriously such a unprofessional and rude shop!The phone reps make your call out to be a hassle for them,EXTREMLY rude and condensending tones!! The little info they know I would never allow such a shop to work on my Mopar or waste my time with spending money here !Plenty of other great REPUTABLE and WILLINGLY helping shops to get you what you need,without the backlashMaybe next time theyll be a little more considerate after a natural disaster strikes, rather then think the world is out to screw them Ive had nothing but issues with HHP truly a shop I dont think anyone should waste their time with unless they enjoy headaches a financial losses : /At the time I was contacted my address and billing info was still the same their employees only hear what they want to hear

Josh is a great guy and easy to talk to

Josh was great to deal with. They did an awesome job on my SRT8 tuning it. I had a problem with my rear diff right after work was done. I unjustly accused them of damaging my car. Come to find out it was the guy transporting the car was responsible. Josh was very professional and tried to help me out. I will definitely recommend HHP to anyone with a mopar needing custom work.

I sent my 2007 dodge magnum srt8 to these guys to get dyno, they did a great job. highly reccomend

Very friendly and helpful

Great Products, Awesome Customer Service, and Technical Support.....

They have everything hemi related

Best in the modern HEMI business

Extremely poor service.

These guys are great!

It doesnt get any better than this yall!!!