This teal-wrapped R35 Nissan GT-R came in for an HKS Racing Exhaust install — SUS304 stainless construction, mandrel-bent piping, and quad 124 mm tips. The result is an aggressive tone that opens up under load without droning on the highway. The exhaust is done, and EcuTek tuning is up next for this build. Goodspeed Performance handles GT-R exhaust and tuning in Scottsdale, Arizona. Building an R35? Call 480-747-6150 or stop by the shop.

From all of us at Goodspeed Performance, Happy Labor Day! We'll be closed Saturday, September 5 through Monday, September 7 for the holiday weekend, and we'll reopen Tuesday, September 8 at 9:00 AM. Thank you to our amazing customers for your continued support — we appreciate you, and we hope you have a safe and happy Labor Day weekend. 15001 N Hayden Rd, Suite 101, Scottsdale AZ 85260 · 480-747-6150 · goodspeedperformance.com

If you drive a 2020-or-newer BMW, Toyota GR Supra, or MINI, your ECU (the Bosch MG1/MDG1) came locked from the factory. That lock is what stood between you and a real tune — and until now, opening it up meant sending the ECU away. A couple of years ago that meant shipping it overseas and waiting a month. More recently, a mail-in service in Alabama brought it down to about three days — at $399 plus $130–160 in round-trip shipping to Arizona. Better, but still your ECU in a box

The Unitronic Labor Day Sale is here. From August 24 through September 11, 2026, save 15% or $150 — whichever is greater — on Unitronic Performance Software for your VW or Audi. Want the most out of the sale? Take the Labor Day discount on your ECU tune, then add a TCU tune and stack a $150 combo discount on top for a complete, dialed-in setup. Goodspeed Performance is Arizona's authorized Unitronic dealer. That means more power, sharper throttle response, and more driving en

When longtime customer Rick brought his Red Porsche 992 911 Turbo S to Goodspeed Performance, the goal was simple: a no-compromise, high-end full build that performs in the real world — including Arizona's brutal summer heat and pump-gas reality. This is the exact build combination that makes 850 horsepower on 100 octane and 775 horsepower on Arizona 91 octane pump gas on these cars. That 91-octane number is the one we're most proud of — making 775HP on the gas you can pull f

Anyone can make good power in perfect conditions. It takes real tuning talent to make it happen on regular 91 octane Arizona pump gas in the middle of summer heat soak. This Mercedes-AMG GT63 rolled onto our dyno and put down 711.9 HP and 744.6 lb-ft to all four wheels, and that's the real test of a quality tune: how it performs when conditions aren't ideal. That's what g ood calibration looks like: a Weistec W2 ECU and transmission tune doing its job even when the fuel and t

Kline Innovation builds some of the most beautifully fabricated equal-length turbo manifolds — or headers —, and Goodspeed Performance is proud to be the direct Kline Innovation importer in Arizona. The moment you see a set in person, the quality is obvious: hand-welded stainless, mandrel-bent runners, and finish work that looks like sculpture. But it's more than looks. Kline tunes each runner to a precise length so the individual exhaust pulses arrive in sequence, which inc

Another clean build just rolled out of the Goodspeed Performance shop — this time a silver Mazda MX-5 Miata RF getting the full HKS Hi-Power exhaust treatment. The HKS Hi-Power is a favorite for MX-5 owners who want a real exhaust note without going over the top: a direct bolt-on system with a clean, aggressive tone and a quality twin-tip finish. As the shop photos show, the install is dialed in from tip to tip — proper routing, solid fitment, and those polished HKS twin tips

Goodspeed Performance just wrapped up installing an HKS Hi-Power Muffler exhaust system, and the results speak for themselves — a deep, aggressive tone paired with clean, professional fabrication. If you're in Arizona and looking for HKS, Goodspeed Performance is your go-to shop. We stock genuine HKS parts and provide expert installation from a team that knows the brand inside and out. Whether you want to buy HKS components or have them installed correctly the first time, we'