Great shipping perfect product. Looks and performs as should. Would recommend

Quality of these up pipes look great. Just started the process of going through the upgrade and finding out I need to buy new up pipe bolts. Maybe this should be added in and marked up to add for the bolts. It’s unlikely half of the bolts will be salvageable or make it out of the manifolds without some finesse. Might as well update all of them with new high grade bolts at the same time or recommend them. This could save some down time for us drive way mechanics. Looking forward for the completion. Thanks for the quality products.

Love the product my truck can breathe so much better runs cooler I can definitely feel a power difference my turbo spools way better overall a great product. Just wish I would’ve gotten more merch I got three small stickers and a air freshener after I spent almost $4000

Great product, beautiful work designing it

Very helpful and courteous

10/10 product. Looks badass. good power improvement. filter doesnt get wet in heavy rain, much more turbo whistle. Makes my rig even more of a joy to drive. I'll be purchasing the charge pipe/ y bridge kit from yall soon because of this experience!

One of the best experiences I’ve had with a customer service person. My Duramax Diesel LMM truck was in need of a Y Bridge replacement. It was very late in day when order was placed, HSP customer service team made sure it was shipped out same day.

Great communication from the company giving m a timeline of completion and then getting it done sooner then expected, Fantastic fitment and quality all around.

Shipping was good arrived just before my Birthday as the kit was a gift from my son only issue is the cold side pipe fitment Y bridge boot is very stressed and the intercooler boot is also very stressed. Seems like the bends may be slightly off

Cold air intake looks amazing the blue looks good . Definitely will be ordering more from hsp in the future

The clamps and boots given in this kit are mediocre at best for the money it costs. The Y-bridge doesn’t come with gaskets for some reason when 90% of 99-06 trucks have almost all dry-rotted gaskets by now (in 2026). Not totally bashing this kit, it does have decent performance gains and noticeably lower temps when running hard but for ease of installment and better piece of mind that these parts will last… this kit would benefit from better clamps and boots for suuurrrrrreee so if you’re buying for the first time make sure you get Y-bridge gaskets and PPE’s or Bank’s boots and clamps

Great Company, Great Company.

Awesome!

Great products that work and fits flawlessly, kick ass customer service, lifetime warranty. Had a rough shipment, customer service fixed it the issue.

Shipping was great nothing broken

Great quality and perfect fit. Installation was quick and easy, and the tie downs hold the batteries securely. They look much better than the factory setup and really clean up the engine bay. Very happy with the fit, finish, and overall quality. Definitely recommend!

Love everything! Just had the local shop order the powder coated intake!!

Great product very good fitment

I purchased the hsp high flow kit and it fit amazingly well! Truck runs great now!

The package that I ordered was delivered when you said it would, I had an overflow tank that was for another model, called and you got the right one to me in two weeks. Everything fit perfectly. I will hopefully get the truck up and running in the next two days. It sounds good can’t wait to see the difference, thank you so much!!