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Audi B8/B8.5 S5 Quattro V8 4.2L

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Audi B8/B8.5 S5 Quattro V8 4.2L Performance Engine & Drivetrain Parts

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B8 A4/S4/A5/S5 Selector Shaft Monoball & Transmission Mount Bushing Insert Kit

ES#4876600 - 048563LA02EBKT - B8 A4/S4/A5/S5 Selector Shaft Monoball & Transmission Mount Bushing Insert Kit - Eliminate the loose or sloppy feeling from your shifter and drivetrain! - Enthusiast Bundles - Audi

Eliminate the loose or sloppy feeling from your shifter and drivetrain! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876600
Mfg#:
048563LA02EBKT
In Stock
ON SALE! SAVE 40%
$252.99

This product was last offered at the strikethrough price on
05-05-2026

$152.54 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stage 2 Drag Clutch Kit

ES#2725128 - KS5B8HDB - Stage 2 Drag Clutch Kit - Designed for drag or drift cars that see limited street use. Conservatively rated at 500ft/lbs. - South Bend Clutch - Audi

Designed for drag or drift cars that see limited street use. Conservatively rated at 500ft/lbs. Works with stock flywheel

Brand:
South Bend Clutch - Corporate Logo
ES#:
2725128
Mfg#:
KS5B8HDB
Ships in 2 Business Days
$1302.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stage 2 Drag Clutch Kit

ES#2725288 - KS4B8HDB - Stage 2 Drag Clutch Kit - Designed for drag or drift cars that see limited street use. Conservatively rated at 500ft/lbs. - South Bend Clutch - Audi

Designed for drag or drift cars that see limited street use. Conservatively rated at 500ft/lbs. Works with stock flywheel

Brand:
South Bend Clutch - Corporate Logo
ES#:
2725288
Mfg#:
KS4B8HDB
Ships in 2 Business Days
$1302.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Flow Fuel Pump - 255 LPH

ES#2189784 - PMPWINLINE - High Flow Fuel Pump - 255 LPH - Great for when more fuel is needed in a custom fueling application - Walbro - Audi BMW Volkswagen

Great for when more fuel is needed in a custom fueling application

Brand:
Walbro - Corporate Logo
ES#:
2189784
Mfg#:
PMPWINLINE
In Stock at Vendor
$139.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 2 Endurance Clutch Kit

ES#3106549 - ks4b8hdofeKT - Stage 2 Endurance Clutch Kit - Designed for track use while still streetable. Conservatively rated at 430ft/lbs. - South Bend Clutch - Audi

Designed for track use while still streetable. Conservatively rated at 430ft/lbs.

Brand:
South Bend Clutch - Corporate Logo
ES#:
3106549
Mfg#:
KS4B8HDOFEKT
Ships in 2 Business Days
$1237.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbonio Replacement Filter Element

ES#2592687 - RF100003 - Carbonio Replacement Filter Element - Replacement air filter for APR Carbonio intake systems - APR - Audi

Replacement air filter for APR Carbonio intake systems Call In Or Chat For Best Price!
CARB certified for sale in all 50 states

Brand:
APR - Corporate Logo
ES#:
2592687
Mfg#:
RF100003
EO#:
d-783-2
In Stock
12% off MSRP

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

$92.99

This product was last offered at the strikethrough price on
09-17-2026

$81.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

340lph High Flow In-Tank Fuel Pump

ES#3604757 - 50-1000 - 340lph High Flow In-Tank Fuel Pump - AEM?s 340LPH High Flow In-Tank Fuel Pump is designed for high performance naturally aspirated and forced induction EFI vehicles. - AEM Electronics - Audi Volkswagen

AEM?s 340LPH High Flow In-Tank Fuel Pump is designed for high performance naturally aspirated and forced induction EFI vehicles. This is a general-use high flow fuel pump, not a direct plug-and-play swap in most applications

Brand:
AEM Electronics - Corporate Logo
ES#:
3604757
Mfg#:
50-1000
In Stock
11% off MSRP

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

$132.99

This product was last offered at the strikethrough price on
09-17-2026

$117.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

400LPH High Flow Fuel Pump (AN Fittings)

ES#3603936 - 50-1005 - 400LPH High Flow Fuel Pump (AN Fittings) - Designed for high performance naturally aspirated and forced induction EFI vehicles - It can be installed externally or in-tank using optional hardware that is sold separately - AEM Electronics - Audi Volkswagen

Designed for high performance naturally aspirated and forced induction EFI vehicles - It can be installed externally or in-tank using optional hardware that is sold separately This is a general-use high flow fuel pump, not a direct plug-and-play swap in most application

Brand:
AEM Electronics - Corporate Logo
ES#:
3603936
Mfg#:
50-1005
In Stock at Vendor
9% off MSRP

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

$224.99

This product was last offered at the strikethrough price on
09-17-2026

$204.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Rear Differential Mount Upgrade

ES#2966690 - 034-505-2019 - Billet Aluminum Rear Differential Mount Upgrade - Installation is very simple, can be performed in minutes, and is completely reversible. - 034Motorsport - Audi

Installation is very simple, can be performed in minutes, and is completely reversible. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
2966690
Mfg#:
034-505-2019
Ships in 3 Business Days
$117.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

AP3 OBD2 UNIVERSAL CABLE

ES#4415272 - AP3-OBDII-CABLE- - AP3 OBD2 UNIVERSAL CABLE - Tidy up your cabin with the COBB OBDII Universal Cable! - CobbTuning - Audi BMW Volkswagen Porsche

Tidy up your cabin with the COBB OBDII Universal Cable!

Brand:
CobbTuning - Corporate Logo
ES#:
4415272
Mfg#:
AP3-OBDII-CABLE-
In Stock
$85.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Pressure-Mechanical Fuel Pump Upgrade Kit

Upgrade your HPFPs to get the most out of the direct injection fueling system!

Brand:
JH Motorsports - Corporate Logo
ES#:
4046073
Mfg#:
HPFPUPGV8
Ships on Oct 5, 2026
$749.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Differential Carrier Mount Insert Kit

ES#2966689 - 034-505-2016 - Rear Differential Carrier Mount Insert Kit - Installation is very simple, can be performed in minutes, and is completely reversible. - 034Motorsport - Audi

Installation is very simple, can be performed in minutes, and is completely reversible. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
2966689
Mfg#:
034-505-2016
Ships in 3 Business Days
$134.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Unitronic Performance Software - Flashed @ ECS

ES#4464758 - 4.2-4V-FSI - Unitronic Performance Software - Flashed @ ECS - Choose the stage that meets your power goals! - Unitronic - Audi Volkswagen

Choose the stage that meets your power goals! This tune requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the next

Brand:
Unitronic - Corporate Logo
ES#:
4464758
Mfg#:
4.2-4V-FSI
In Stock
Starting at $650.00 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Innovate LC-2 Wideband O2 Controller Kit

ES#4809696 - 38770 - Innovate LC-2 Wideband O2 Controller Kit - Includes Lambda cable & 8-foot sensor cable. - Innovate Motorsports - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Includes Lambda cable & 8-foot sensor cable.

Brand:
Innovate Motorsports - Corporate Logo
ES#:
4809696
Mfg#:
38770
In Stock at Vendor
$212.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Shift Kit - Audi B8 A4/A5/S5/S5

ES#2834823 - 004113ECS01KT - Ultimate Shift Kit - Audi B8 A4/A5/S5/S5 - Includes the ECS Adjustable Short Throw Shifter paired with BFI's Heavy Weight SCHWARZ Shift Knob - ECS / BFI - Audi

Includes the ECS Adjustable Short Throw Shifter paired with BFI's Heavy Weight SCHWARZ Shift Knob

Brand:
ECS / BFI
ES#:
2834823
Mfg#:
004113ECS01KT
In Stock
$636.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Mishimoto Liquid Chill Radiator Coolant Additive - 4oz

ES#2764643 - MMRALC - Mishimoto Liquid Chill Radiator Coolant Additive - 4oz - Pairs with all types of coolant to increase heat transfer and decrease engine temps. - Mishimoto - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Pairs with all types of coolant to increase heat transfer and decrease engine temps.

Brand:
Mishimoto - Corporate Logo
ES#:
2764643
Mfg#:
MMRALC
In Stock
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Engine & Drivetrain Parts

Worn mounts, bushings, and other drivetrain components rob performance. Replace or upgrade your drivetrain with our extensive catalog of mounts, bushings, clutch kits, and more.

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Manufacturer names and/or part numbers are used only for identification purposes.

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