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BMW 335i Performance Cylinder Heads

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Ferrea High Performance Valve Spring Kit, BMW N55/S55

ES#4736723 - FER-HPVSK-N55 - Ferrea High Performance Valve Spring Kit, BMW N55/S55 - Pair Your High Performance Valves with a Set of Upgraded Springs and Retainers! - 5150 Autosport - BMW

Pair Your High Performance Valves with a Set of Upgraded Springs and Retainers!

Brand:
5150 Autosport - Corporate Logo
ES#:
4736723
Mfg#:
FER-HPVSK-N55
Ships in 4 Business Days
$1049.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ferrea High Performance Valve Kit, BMW N55/S55

ES#4736705 - FER-HPVK-S55-T-3 - Ferrea High Performance Valve Kit, BMW N55/S55 - Upgrade Your Factory Intake and Exhaust Valves - 5150 Autosport - BMW

Upgrade Your Factory Intake and Exhaust Valves

Brand:
5150 Autosport - Corporate Logo
ES#:
4736705
Mfg#:
FER-HPVK-S55-T-3
Ships in 4 Business Days
$929.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

6mm Single Groove Valve Keeper - Priced Each

ES#2598482 - KPR-6S-7 - 6mm Single Groove Valve Keeper - Priced Each - Two required per valve, necessary for use with certain supertech valves - Supertech - BMW

Two required per valve, necessary for use with certain supertech valves

Brand:
Supertech - Corporate Logo
ES#:
2598482
Mfg#:
KPR-6S-7
Ships in 2 Business Days
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BMW N55/S55 Valves By Super Tech

Brand:
5150 Autosport - Corporate Logo
ES#:
4900024
Mfg#:
SUP-HPVK-S55-32/
Ships in 4 Business Days
$1143.99 USD
Free Shipping
on orders $49 and up

Exhaust Valve Set - Sodium Filled - Oversize

ES#4716077 - bmevi1054shs-1KT - Exhaust Valve Set - Sodium Filled - Oversize - Inconel-Nimonic / Sodium Filled, oversize 28.50mm (+0.5mm), set of 12. - Supertech - BMW

Inconel-Nimonic / Sodium Filled, oversize 28.50mm (+0.5mm), set of 12.

Brand:
Supertech - Corporate Logo
ES#:
4716077
Mfg#:
BMEVI1054SHS-1KT
In Stock
$660.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Exhaust Valve Set - Sodium Filled - Std Size

ES#4716076 - bmevi-1054s-hsKT - Exhaust Valve Set - Sodium Filled - Std Size - Inconel-Nimonic / Sodium Filled, Std 28mm, set of 12. - Supertech - BMW

Inconel-Nimonic / Sodium Filled, Std 28mm, set of 12.

Brand:
Supertech - Corporate Logo
ES#:
4716076
Mfg#:
BMEVI-1054S-HSKT
Ships in 9 Business Days
$660.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

6mm Single Groove Valve Keeper - Set Of 24

ES#4716124 - KPR-6S-7-24 - 6mm Single Groove Valve Keeper - Set Of 24 - Two required per valve, necessary for use with certain supertech valves - Supertech - BMW

Two required per valve, necessary for use with certain supertech valves

Brand:
Supertech - Corporate Logo
ES#:
4716124
Mfg#:
KPR-6S-7-24
Ships in 6 Business Days
$51.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N54/N55 Single turbo head flange - Mild steel

2X Entries Into Our F80 M3 Sweepstakes

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
3438085
Mfg#:
VTT-FLNG-1
Ships on Nov 9, 2026
$393.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

5mm Single Groove Valve Keeper - Set Of 24

ES#4716125 - KPR-5.0-7S-24 - 5mm Single Groove Valve Keeper - Set Of 24 - Two required per valve, necessary for use with certain supertech valves - Supertech - BMW

Two required per valve, necessary for use with certain supertech valves

Brand:
Supertech - Corporate Logo
ES#:
4716125
Mfg#:
KPR-5.0-7S-24
In Stock
$72.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

5mm Single Groove Valve Keeper - Priced Each

ES#4716123 - KPR-5.0-7S - 5mm Single Groove Valve Keeper - Priced Each - Two required per valve, necessary for use with certain supertech valves - Supertech - BMW

Two required per valve, necessary for use with certain supertech valves

Brand:
Supertech - Corporate Logo
ES#:
4716123
Mfg#:
KPR-5.0-7S
In Stock
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Upgraded Silicone Cylinder Head Outlet Adapter - Black

Provides a permanent "install and forget" upgrade that maintains the factory-style fitment while offering the structural integrity of a racing component. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
5446496
Mfg#:
VTTN54CLADOEM
Ships on Nov 9, 2026
$19.99 USD
Free Shipping

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