H&S Performance Promo Codes for October 2026
Explore the latest H&S Performance Discount Codes, current deals, and savings on Mini Maxx Diesel Tuner, XRT Pro Street Tuner. We regularly review available offers, remove expired promotions, and keep this page updated for October 2026.
H&S Performance offers 1 coupon codes and 16 deals as of October 2026. Today's top offer: XRT Pro Street Tuner Bundles From $999. Codes are verified and updated daily.
🔥 Top H&S Performance Discount Codes for October 14, 2026
Purchase an EGR Delete Kit with a compatible tuner to receive a bundle discount. Savings are automatically applied when both items are in your cart.
Certain XRT Pro Street Tuner bundles start at $999. Pricing is as marked on the product pages for these specific configurations.
Active and retired military personnel receive $50 off their total order. Verification of service may be required.
New customers can get $50 off their initial purchase of any tuner. This offer is valid on your first order only.
Receive $70 off when purchasing any Duramax Tuner. This discount is applied to the item's price automatically.
All Fuel Injector replacements are 10% off their regular price. This applies to individual injector units.
Get up to 10% off various Cold Air Intake components. The discount is applied to the listed price for these parts.
Find select clearance tuners priced under $800. These items are available in limited quantities.
During Tax Refund Season, get $100 off a selection of tuners. This promotion is available for a limited period.
First responders are eligible for $50 off their entire order. Proof of service may be requested for this offer.
Celebrate Father's Day with 5% off select Full Exhaust Systems. This limited-time promotion applies to specific models.
Specific Cummins Tuner models are offered starting at $750. Prices vary based on the exact tuner specifications.
Get $60 off specific Transmission Tuning Software packages. This reduction is reflected in the product pricing.
Bundle a Powerstroke Tuner with a DPF Delete Pipe for a combined discount. The total price will be reduced at checkout.
When you buy a Black Maxx Tuner, receive 10% off any Gauge Pod. Add both items to your cart for the discount to apply.
Find specific Dodge Ram Performance Chips priced under $400. Stock levels for these items may fluctuate.
Customer Reviews
Consistent quality, returning customer
This was my third order from H&S Performance, this time for a Transmission Tuning Software upgrade. Just like my previous purchases (a Cummins Tuner and then a Fuel Rail Plug), the process was smooth. The software downloaded without any issues, and the instructions were clear. I appreciate that they consistently deliver on time and their products perform as advertised. It's why I keep coming back; I know what to expect and they always meet it. Good to see they're still reliable.
Good product, minor shipping issue
I purchased an EGR Delete Kit and a DPF Delete Pipe. The parts themselves seem to be of good quality, and the truck runs much better now. Installation took some time but that's to be expected with these kinds of upgrades. My only small gripe was that the DPF pipe arrived a day later than the EGR kit, which meant waiting to start the full job. Customer service was responsive when I inquired about the split delivery, though. Overall, a solid purchase and I got what I needed.
Mini Maxx is fantastic
I ordered the Mini Maxx Diesel Tuner last week and it's absolutely brilliant! The installation was smooth, and my truck feels like a whole new beast. The power increase is noticeable, and the interface is super easy to navigate. Shipping was quicker than I expected too, got to me in about 4 days. I will definitely be coming back for more parts soon, maybe a cold air intake next. I'll tell my buddy about this store for sure.
XRT Pro arrived fast
Bought an XRT Pro Street Tuner. It arrived quickly, took 3 days to get to me. Installation was simple enough. Truck runs better. Good purchase.
H&S Performance Community Discussion
Share tips, ask questions & help fellow shoppers save more
Hey, thinking about grabbing a Mini Maxx tuner. How long does shipping usually take to like, Arizona?
Are these H&S tuners actually still good? Heard some stuff about them being hard to get or something.
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