5 Series :: M5 (E39) 2000-2003

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Performance Engine Software
Product Number: D900-50M

Dinan Engine Software safely raises the rev-limit by 270 rpm, endowing your M5 with a broader power band and greater road speed in each gear. The software also removes the top speed governor, enabling the cars to attain their ''natural'' top speed. The software also speeds up throttle response ...

Price: $399.00

THIS PRODUCT IS NOT FOR PURCHASE ON THE WEBSITE. CONTACT DINAN OR A DINAN AUTHORIZED DEALER DIRECTLY TO PURCHASE.

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Cold Air Intake - Aluminum
Product Number: D760-0390C

The design goal for the M5 High Flow Cold Air Intake System was very specific: ensure that the powerful M5 engine is breathing plenty of cool oxygen rich air for maximum performance under varying driving conditions. The system replaces the factory air-boxes with proprietary twin high flow air fi...

Price: $1699.00

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Stage 2 Engine Software
Product Number: D903-50M2

Stage 2 Engine Software is for use with the High Flow Cold Air Intake optimizing performance and drivability.

Dinan software is not available for purchase on-line as it must be downloaded by an Authorized Dinan Dealer using specialized equipme...

Price: $499.00

THIS PRODUCT IS NOT FOR PURCHASE ON THE WEBSITE. CONTACT DINAN OR A DINAN AUTHORIZED DEALER DIRECTLY TO PURCHASE.

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High Flow Air Mass Meters (For Aluminum CAI)
Product Number: D763-1500D

The High Flow Air Mass Meters compliment the Cold Air Intake by further increasing the engine's ability to breathe. The High Flow units feature a larger internal diameter enabling air to flow more freely from the Cold Air Intake to the intake plenum for increased power. The Dinan Air Mass Meter...

Price: $599.00

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High Flow Air Mass Meters (For Carbon Fiber CAI)
Product Number: D763-1500C

The High Flow Air Mass Meters compliment the Cold Air Intake by further increasing the engine's ability to breathe. The High Flow units feature a larger internal diameter enabling air to flow more freely from the Cold Air Intake to the intake plenum for increased power. The Dinan Air Mass Meter...

Price: $799.00

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Stage 3 Engine Software
Product Number: D903-50M3

Stage 2 Engine Software is for use with the High Flow Air Mass Meters and Cold Air Intake optimizing performance and drivability.

Dinan software is not available for purchase on-line as it must be downloaded by an Authorized Dinan Dealer using...

Price: $599.00

THIS PRODUCT IS NOT FOR PURCHASE ON THE WEBSITE. CONTACT DINAN OR A DINAN AUTHORIZED DEALER DIRECTLY TO PURCHASE.

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Free Flow Exhaust
Product Number: D660-3950

Dinan's Free Flow Exhaust for the M5 provides improved flow and the resulting power gains without the excessive noise associated with typical ''after-market'' mufflers. The Dinan exhaust features a rigid and durable muffler case, manufactured from 20 gauge-304 stainless steel for optimum resistan...

Price: $1999.00

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Exhaust Headers
Product Number: D360-6500

Dinan has developed an extremely effective 4:2:1 anti-reversion equal length tube header system for the M5 that dramatically reduces back pressure for substantial power gains. Equal length tubes pass through silky smooth merge-collectors, enabling exhaust gasses to be extracted in the most effic...

Price: $7999.00

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Stage 4 Engine Software
Product Number: D903-50M4

Stage 4 Engine Software is for use with Cold Air Intake, Header System, and High Flow Air Mass Meters, optimizing performance and drivability.

Dinan software is not available for purchase on-line as it must be downloaded by an Authorized Dinan ...

Price: $699.00

THIS PRODUCT IS NOT FOR PURCHASE ON THE WEBSITE. CONTACT DINAN OR A DINAN AUTHORIZED DEALER DIRECTLY TO PURCHASE.

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High Flow Throttle Bodies & Tuned Velocity Stacks
Product Number: D760-5020B

The stock M5 throttle bodies have each been carefully bored to a larger internal diameter for futher improvement of air-flow and immediate throttle response. The factory velocity stacks are also replaced with larger diameter spun aluminum units that have been carefully shaped and sized for optim...

Price: $5299.00

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