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Mercedes-AMG W213 E63 / E63 S Performance Upgrade Path (2026)

Stage 1 to Stage 3 build path for the W213 E63 and E63 S (M177 4.0L twin-turbo V8). 603 HP factory to 1,000+ wheel HP. Downpipe priority, tuner picks, fueling upgrades, and the supporting mods that protect the M177 long-term.

May 27, 2026
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BMW M2 F87 vs G87: Which One Should You Buy in 2026?

F87 M2 (2016-2021) vs G87 M2 (2023+) head-to-head comparison. Engine, chassis, weight, transmission, tuning potential, parts availability, and value. Which M2 is the better buy in 2026 — and which one is better to modify.

BMW N55 Tuning Guide: F30 335i, F22 M235i, F87 M2 — Stages 1-3 (2026)

The 2026 BMW N55 tuning roadmap. From 300 HP stock to 500+ HP. Covers F30 335i, F22 M235i, F32 435i, F87 M2 (base), and X-series. Stage 1, Stage 2 bolt-ons, port injection, and the supporting mods that protect the N55 long-term.

May 27, 2026
0 commentson Toyota A90 Supra (B58) Best Mods + Tuning Roadmap (2026)

Toyota A90 Supra (B58) Best Mods + Tuning Roadmap (2026)

The 2026 buying guide for A90 Supra owners building a fast street car. Stage 1 (450 HP) through Stage 3+ (800+ HP). What carries over from the BMW B58 platform, what is Supra-specific, and the build order we recommend at KORE SPEED.

Audi C8 RS6 / RS7 4.0T Tuning Guide: Stage 1 vs Stage 2 vs Stage 3 (2026)

Stage 1 to Stage 3 tuning roadmap for the Audi C8 RS6, RS7, and RSQ8 4.0L twin-turbo V8. From 591 HP factory to 1,000+ HP. Downpipe priority, ECU vs TCU tunes, fueling upgrades, and the supporting mods that protect the EA825 V8.

May 27, 2026
0 commentson Audi B9 S4 / S5 3.0T Tuning Guide: Stages 1 to 3 (2026)

Audi B9 S4 / S5 3.0T Tuning Guide: Stages 1 to 3 (2026)

Complete Audi B9 S4 / S5 3.0T tuning roadmap. Stage 1 (400-450 HP) through Stage 3 (550-620+ HP). Single-turbo TFSI build path, downpipe priority, intake, intercooler, and the supporting mods that protect the car at high boost.

May 27, 2026
0 commentson BMW G80 M3 / G82 M4 S58 Tuning Guide: Stages 1 to 3+ (2026)

BMW G80 M3 / G82 M4 S58 Tuning Guide: Stages 1 to 3+ (2026)

Stage 1 to Stage 3+ tuning roadmap for the BMW S58 powering G80 M3, G82 M4, and G87 M2. Covers the closed-deck S58 architecture, port-injection-from-the-factory advantage, downpipe and charge pipe priority, fueling, and turbo upgrade paths.

May 27, 2026
0 commentson BMW F80 M3 / F82 M4 S55 Tuning Guide: Stages 1 to 3+ (2026)

BMW F80 M3 / F82 M4 S55 Tuning Guide: Stages 1 to 3+ (2026)

Complete tuning roadmap for the BMW S55 twin-turbo straight-six powering the F80 M3, F82 M4, and F87 M2 Competition. Stage 1 (470-520 HP) through Stage 3+ (700-900+ HP). Tuner picks, downpipe + charge pipe priority, fueling upgrades, and the known S55 failure points.

JB4 vs MHD vs bootmod3: Which BMW Tuner is Right for You in 2026?

Side-by-side comparison of the three BMW tuners that matter in 2026: BMS JB4 piggyback, MHD Wireless flash, and bootmod3 cloud flash. Covers N54, N55, S55, B58 (Gen 1 and Gen 2), S58. Pros, cons, price, and which one to pick.

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