BMW 335d Stage 1 Tuning with Q-PRO+

What It Is
A Stage 1 performance tune for the BMW 335d, delivered through the Q-PRO+ module over the OBD port. The price includes both the tune and the Q-PRO+ device.

Performance Gains

• +90 lb-ft of torque, the number that drives how the 335d actually feels to accelerate
• +60 hp alongside the torque gain
• More pull through the mid and top RPM range, useful for passing and spirited driving
• Turbo lag noticeably reduced, with better throttle response
• Up to 10% MPG improvement on long-distance driving

Why the Q-PRO+

• Flash the tune yourself from your garage or driveway through the OBD port, no mechanic visit required
• Runs on stock components, no supporting hardware upgrades needed
• Stores both the stock file and the tuned file, so you can switch back to stock before a dealer visit and re-flash afterward

Emissions Requirement
All emissions systems must remain intact and installed. Exhaust flow is not a limiting factor for this tune's output.

Fitment
2009-2011 BMW 335d.

Common Questions

Do I need to upgrade any hardware to run this tune?
No, it's built to work with stock components, no supporting modifications required.

Do I need to bring my car in for this tune?
No. The Q-PRO+ flashes over the OBD port, so you install it yourself once it arrives.

Can I switch back to stock before a dealer visit?
Yes. The Q-PRO+ stores both the stock and tuned files, so you can flash back to stock and re-flash the tune afterward.

Do I need to remove my emissions equipment for this tune?
No, the opposite. All emissions systems must remain intact and installed, and exhaust flow isn't a limiting factor for this tune's output.