Increase of +120 Horsepower, and +87 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance exhausts & high-flow air filters!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms This software is only compatible with Windows PC / Laptop.
Designed for High RPM and Racing, Direct Replacement for M156 and standard M159 Valve Buckets
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For vehicles that already have stage 1 supercharger, and want to upgrade to stage 2. Requires High-Flow Exhaust System.
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+186 HP & + 117 TQ on Stock Vehicle Application, Makes 637 Horsepower (WHP), and 560 Torque (ft-lb)!
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For vehicles that already have stage 1 or 2 supercharger, and want to upgrade to stage 3. 3.0L Twin Screw Compressor Upgrade
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+221 HP & + 219 TQ, For Vehicles with High-Flow Exhausts. Makes 672 Horsepower (WHP), and 662 Torque (ft-lb)!
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Replacement Belt for Stage 3, M156 Supercharger System, ABC Suspension Equipped Vehicles
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+289 HP & + 187 TQ, For Vehicles With High-Flow Exhaust, Colder Spark Plugs, ROW Airbox Set, and Secondary Air Injection Delete. Makes 740+ Horsepower (WHP), and 630 Torque (ft-lb)!
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Does not include new rotor securing screws
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes! For Vehicles With AMG Performance Package (Code P30)
Brand:
ES#:
4349459
Mfg#:
2304211212KT
In Stock at Vendor
$1921.99
This product was last offered at the strikethrough price on 02-14-2026
Lifetime Replacement
