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BMW Performance Engine Parts

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ES#4732819 - 05-458-00106-9KT - Weistec BMW B58 W.1 ECU Tune  - Increase of +101 Horsepower, and +102 Torque, Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications! - Weistec - BMW

Increase of +101 Horsepower, and +102 Torque, Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Weistec - Corporate Logo
ES#:
4732819
Mfg#:
05-458-00106-9KT
In Stock at Vendor
$1599.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4732876 - 05-565-00218-2KT - Weistec BMW E90 M3 W.2 ECU Tune  - Increase of +40 Horsepower, and +45 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance high-flow exhausts! - Weistec - BMW

Increase of +40 Horsepower, and +45 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance high-flow exhausts! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Weistec - Corporate Logo
ES#:
4732876
Mfg#:
05-565-00218-2KT
In Stock at Vendor
$1399.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4708349 - 05-455-00076-2KT - Weistec BMW N55 W.2 ECU Tune - Increase of +96 Horsepower, and +94 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance exhausts & high-flow air filters! - Weistec - BMW

Increase of +96 Horsepower, and +94 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.

Brand:
Weistec - Corporate Logo
ES#:
4708349
Mfg#:
05-455-00076-2KT
Ships in 1 Business Day
$1299.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement
ES#4730417 - 05-563-00146-0KT - Weistec BMW M5 F90 S63TU W.2 ECU Tune  - Increase of +125 Horsepower, and +142 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance exhausts & high-flow air filters! - Weistec - BMW

Increase of +125 Horsepower, and +142 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

Brand:
Weistec - Corporate Logo
ES#:
4730417
Mfg#:
05-563-00146-0KT
Ships in 1 Business Day
$2799.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement
ES#4730439 - 05-463-00097-4KT - Weistec BMW N63 W.1 ECU Tune - Increase of +120 Horsepower, and +130 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications! - Weistec - BMW

Increase of +120 Horsepower, and +130 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Weistec - Corporate Logo
ES#:
4730439
Mfg#:
05-463-00097-4KT
Ships in 1 Business Day
$1599.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4730441 - 05-420-00101-3KT - Weistec BMW N20 W.1 ECU Tune  - Increase of +62 Horsepower, and +65 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications! - Weistec - BMW

Increase of +62 Horsepower, and +65 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Weistec - Corporate Logo
ES#:
4730441
Mfg#:
05-420-00101-3KT
Ships in 1 Business Day
$999.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4708348 - 05-455-00075-1KT - Weistec BMW N55 W.1 ECU Tune  - Increase of +75 Horsepower, and +71 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications! - Weistec - BMW

Increase of +75 Horsepower, and +71 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This software is only compatible with Windows PC / Laptop.

Brand:
Weistec - Corporate Logo
ES#:
4708348
Mfg#:
05-455-00075-1KT
Ships in 1 Business Day
$1199.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement
ES#4730442 - 05-420-00102-4KT - Weistec BMW N20 W.2 ECU Tune - Increase of +90 Horsepower, and +90 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance exhausts & high-flow air filters! - Weistec - BMW

Increase of +90 Horsepower, and +90 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

Brand:
Weistec - Corporate Logo
ES#:
4730442
Mfg#:
05-420-00102-4KT
Ships in 1 Business Day
$1099.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4699044 - ESBM2FVKCS - Varex Cat Back System - Valved Dual 2.5" to Single 3" Cat Back System - XForce - BMW

Valved Dual 2.5" to Single 3" Cat Back System affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Not Suitable for Competition Models

Brand:
XForce - Corporate Logo
ES#:
4699044
Mfg#:
ESBM2FVKCS
Ships in 1 Business Day
$1850.00 USD

Want your S63 to push 1000HP! Here the perfect kit. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
5150 Autosport - Corporate Logo
ES#:
4872133
Mfg#:
5150-TBK-S63-F10
Ships in 3 Business Days
$6799.99 USD

Performance N55 camshaft set designed exclusively for 5150 AutoSport and manufactured by Cat Cams! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
5150 Autosport - Corporate Logo
ES#:
4899803
Mfg#:
N55CCCAM-278-272
Ships in 3 Business Days
$1799.99 USD
Free Shipping
on orders $49 and up

This features a shorter tube than a cold-air system for increased performance in an easy to install kit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CARB certified for sale in all 50 states
For 1999-2000 model years without HID headlights

Brand:
AEM - Corporate Logo
ES#:
4138967
Mfg#:
AEM-22-670P
EO#:
D-670
Ships in 4 Business Days
$429.99 USD
Free Shipping
on orders $49 and up

Improved form and function for your air induction system! Motorsport-grade carbon fiber and dry media air filters shows a massive 27% increase in airflow efficiency! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AMS Performance - Corporate Logo
ES#:
4899597
Mfg#:
AMS.39.08.0001-1
Ships in 2 Business Days
$2649.99 USD
Free Shipping

Improved cooling efficiency for reduced heat soak! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AMS Performance - Corporate Logo
ES#:
4899599
Mfg#:
AMS.51.02.0001-1
Ships in 2 Business Days
$999.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Offers great strength and fatigue resistanve vs stock bolts, increasing clamping strength and preventing cylinder head lift and damage. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ARP - Corporate Logo
ES#:
5388490
Mfg#:
401-4701
In Stock at Vendor
20% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$1027.99

This product was last offered at the strikethrough price on
06-22-2026

$822.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Offers great strength and fatigue resistanve vs stock bolts, increasing clamping strength and preventing cylinder head lift and damage. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ARP - Corporate Logo
ES#:
5435373
Mfg#:
201-4705
In Stock at Vendor
20% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$467.99

This product was last offered at the strikethrough price on
06-22-2026

$373.99 USD
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Engine Parts

Our name says it all. That's why ECS Tuning is dedicated to providing our customers with the broadest possible assortment of engine tuning options at a range of prices and options to fit any budget. Start small and grow your car into something special with performance engine upgrades from a company that has tuning in its name and its blood.

Other BMW Performance Engine Parts

Let us help you find the parts that fit your BMW

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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