HSP Diesel

Mike helped me out with all of the tedious questions i had before the purchase and Blair kept me in the loop on my expected date of completion. Parts arrived ahead of schedule and i can't say enough good things about the fit, finish and performance gains! Thank you to the entire team at HSP Diesel for making such a killer product and being absolutely awesome to deal with!! Keep up the great work!

You guys did great! I haven't got the parts in yet. But I really did like how I was not only reached out to by a real person. But also I was able to contact a real person back. Thanks for keeping me in the loop on my order, and getting back to me when I asked for updates.

Very great quality brand. Only thing that affected a 5 star review was how long it took to come in and the lack of communication with customers. Thank you, I will be ordering again.

Hot side pipe don't fit , I've tried not going to happen lb7, and the radiator tank I bought comes with some plastic gage to let you know if your water is low leaked, had to put pipe tape on to stop leaking, haven't tried the cold side pipe yet , still to fusted to try, and none of the parts were labeled as to what goes with what, I feel like for 1800 dollars stuff should fit properly, but instead I got 4 stickers, don't know if I'll buy anything from here anymore

**UPDATE**
I’m updating my rating to 5 stars because customer service has been nothing but willing to help me with my issue I had with a product, very helpful and professional. They’ll definitely keep my business
So I had first bought a new air intake for my 2015 Chevy and was very satisfied with it, so I decided to get a new coolant overflow tank for my truck as well. Unfortunately I was not very satisfied with the coolant tank, worked great for a about a month but just today on my way to school the tank cracked and lost all the coolant that was In the tank. Spending 300-500 dollars for an aftermarket part you’d think you’re getting very high quality and reliable equipment but unfortunately I was let down with the new tank. Just be careful on what you get.

Haven't had time to put the traction bars on, hoping for tomorrow. On another note the packaging and individual wrap job far exceeded my expectations and will be ordering from HSP in the near future. Thanks again for all your tech and support

HSP always delivers perfection! Installed y bridge and up pipe in my LLY they fit perfect and the illusion blueberry is beautiful! Thank you for the great customer service and fast delivery! Highly recommended!

Great quality parts and powder coats are always spot on. Fitment Is great when using entire kit as it was intended and made for other than that minor fitment adjustments but overall 5/5

I’ve been a customer for about a year now and everything that I have ordered from HSP has been top notch quality as well the customer care in regards to knowing when delays happen or wanting to check on your order status is is superb best if the best with this company highly recommend if you want to get treated like a valued friend.

Love the ease of installation. Did notice a bit of a fuel savings with a increase of approximately 1mpg. Will keep monitoring to see it that is an actual increases after a few tanks.

HSP products are always quality and customer service is one of the best in the business. The Fact that HSP stands behind their products makes them truly stand out in the industry.

So it says in stock for the parts i ordered being the only reason I ordered them through a third party or middle man normally in stock means you have that or those parts in your warehousenor garage whatever so if you don't gave them then it's not in stock and why would I order something through you that you have to order when I can call kryptonite and get it faster than you can it's been 2.5 weeks on the hubs and haven't gotten another email other than processing take a little over 2 grand and then tell me 10 weeks on the parts well give me money back when you get the parts I'll buy them I can donalot with my money I don't need you guys holding itb

All I can say is this place is the way business should be ran. Customer service over the top. Any and all questions answered promptly. Now for the products
AWESOME!!! Quality #1. Shipping blazing fast. HSP Is for real. Thanks all who make the effort there. Thanks again

The mouthpiece on a pipe was too small & they were super quick to get us a return label & got the right piece to us in less than a week. The powder coat looks great & my husband is excited to get them in his truck!
We were not upset at all about the mouthpiece sizing issue. They have great customer service.

Had a issue with my order. Color wasn't right. Not only did they switch it out for me no questions asked they also threw in another part I hadn't purchased and covered shipping both ways. Top notch company!!

I bought quite a few parts for my LBZ build. Powdercoat came out very nice. Parts were shipped out on time and packaged very well to prevent any damage from occurring during delivery. Performance-wise I’m very happy. My truck is so much faster now with better turbo spool and it sounds good also. HSP is definitely top notch quality and I will be purchasing more in the future

I recently got traction bars for my 2002 2500hd duramax. handling is so smooth under heavy acceleration. Easy installation but the only problem I had was threading in the heim joints. I had to use tap to clean the treads from the powder coating. Other than that I'm satisfied.

The customer service was awesome! That's for sure a 10 out of 10! There was only 2 little issues which 1 isn't even HSP product related as much but would be great if you guys could send an instruction manuel how to put the pieces together just give ideas how to approach certain things since that would help people like me who would try to tackle this project alone and 2. It would be nice if you guys would supply a plug for the injector return line fitting kinda like WC Fab does (which by the way they do send a manuel on how to overall in general install their kits) which again no means do I mean send a whole instruction manuel but just kinda how they do in small detail to point you into the right direction how the parts should go. Besides that amazing quality and craftsmanship and I will be purchasing again from you guys soon for the manifolds! P.s. the truck these parts went on was a 2016 GMC 2500!

Bought the HSP billet manifolds. Explained to Mike @ HSP I was pressed on time and he made sure I got the last available made manifolds due to my situation. I am a repeat customer and will only deal with HSP for all my truck needs. The manifolds make the truck run about 100°F cooler running a 200hp tune, weld beads are nice, ceramic coat is clean. Again, the customer service is the absolute best, they speak English, there isn't a long wait time to talk to a REAL human being, its AMERICAN made and all needed parts come with their products. After my order I realized I needed up pipe gaskets because I didn't read the full description upon my purchase, emailed Mike and I tried to pay over the phone and he just threw them in my shipping box with my manifolds on the house. I can't rate this company high enough. My lift pump, HSP full Y-Bridge, manifolds, CP3 Conversion, CTS3 monitor, PCV re-route kit have all been ordered through HSP amongst other things and I keep coming back not only because the quality is top notch, but the customer service alone and I don't even entertain other companies. Very humble people and they ALWAYS return calls, emails if the phone is busy and have to leave a message. This is the mold of how companies should function.

Spoke to Mike in sales over the phone and ordered on line shortly thereafter. Very quick and easy to deal with just like all of the recommendations for them I heard about on YouTube. Love their quality and fitment. I will definitely recommend HSP Diesel to family and friends!