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BMW 135i Performance Engine Internals

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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 3 Business Days
$1049.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Supertech Forged Pistons - Set Of 6

ES#4716143 - P6-BMN55-84-T-6 - Supertech Forged Pistons - Set Of 6 - Supertech 84mm 2618 forged pistons - Supertech - BMW

Supertech 84mm 2618 forged pistons

Brand:
Supertech - Corporate Logo
ES#:
4716143
Mfg#:
P6-BMN55-84-T-6
In Stock
Limited Qty Sale
$984.99

This product was last offered at the strikethrough price on
05-20-2026

$904.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turner Motorsport WPC-Treated Race Series Main Bearing Set - N52 N54 N55 S55

ES#4845670 - N5X-WPC-MB - Turner Motorsport WPC-Treated Race Series Main Bearing Set - N52 N54 N55 S55 - The strongest & smoothest bearings for your BMW - featuring heavy-duty ACL "Duraglide" bearing shells treated by WPC for reduced friction and added durability. - Turner Motorsport - BMW

The strongest & smoothest bearings for your BMW - featuring heavy-duty ACL "Duraglide" bearing shells treated by WPC for reduced friction and added durability. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4845670
Mfg#:
N5X-WPC-MB
In Stock
Limited Qty Sale
$607.99

This product was last offered at the strikethrough price on
05-02-2026

$487.99 USD
Free Shipping
on orders $49 and up

Supertech Forged Connecting Rods - Sold Each

ES#4643347 - CR-BMN55-H144.35 - Supertech Forged Connecting Rods - Sold Each - Supertech forged 4340 alloy H-beam connecting rods with ARP2000 3/8" bolts - Supertech - BMW

Supertech forged 4340 alloy H-beam connecting rods with ARP2000 3/8" bolts

Brand:
Supertech - Corporate Logo
ES#:
4643347
Mfg#:
CR-BMN55-H144.35
In Stock
Limited Qty Sale
$198.99

This product was last offered at the strikethrough price on
05-02-2026

$184.99 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 3 Business Days
$929.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spline Lock Crank Hub Solution - Hub Only - N54

ES#3621960 - VTT-N54-CRANKHUB - Spline Lock Crank Hub Solution - Hub Only - N54 - A truly remarkable solution from Vargas that will eliminate the risk of a spun crank hub. - Vargas Turbo Technologies - BMW

A truly remarkable solution from Vargas that will eliminate the risk of a spun crank hub. 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
3621960
Mfg#:
VTT-N54-CRANKHUB
Ships in 10 Business Days
$818.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spline Lock Crank Hub Solution - Hub Only - N55 S55

ES#4389737 - VTT-N55-CRANKHUB - Spline Lock Crank Hub Solution - Hub Only - N55 S55 - A truly remarkable solution from Vargas that will eliminate the risk of a spun crank hub. - Vargas Turbo Technologies - BMW

A truly remarkable solution from Vargas that will eliminate the risk of a spun crank hub. 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
4389737
Mfg#:
VTT-N55-CRANKHUB
Ships in 10 Business Days
$818.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CP-Carrillo Forged Piston Set - N54

ES#4753383 - CP-FPS-N54-84 - CP-Carrillo Forged Piston Set - N54 - Upgrade to CP-Carrillo's Forged Pistons in Your N54 Powered BMW! - 5150 Autosport - BMW

Upgrade to CP-Carrillo's Forged Pistons in Your N54 Powered BMW! Upgrade Your N54's Pistons to CP-Carrillo's Forged Piston Set!

Brand:
5150 Autosport - Corporate Logo
ES#:
4753383
Mfg#:
CP-FPS-N54-84
Back Ordered
Starting at $1399.99 USD
Customize
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

CP-Carrillo Forged Piston Set - N54

ES#4787488 - CPFPS-N54-84-9.2 - CP-Carrillo Forged Piston Set - N54 - 84mm bore, 9.2:1 compression ratio. Includes HD wrist pins, dome & skirt coatings. - VAC Motorsports - BMW

84mm bore, 9.2:1 compression ratio. Includes HD wrist pins, dome & skirt coatings.

Brand:
VAC Motorsports - Corporate Logo
ES#:
4787488
Mfg#:
CPFPS-N54-84-9.2
Ships on Aug 14, 2026
$2077.99 USD
Free Shipping
on orders $49 and up

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
In Stock
$5.99

This product was last offered at the strikethrough price on
03-04-2026

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N54B30 32cc Platinum Series Dish Extreme Duty Piston Set - 84.5mm Bore

ES#4685591 - 646005CE-6 - N54B30 32cc Platinum Series Dish Extreme Duty Piston Set - 84.5mm Bore - Upgrade to Manley's Platinum Series Extreme Duty Pistons for increased performance! Stock 10.2:1 Compression Ratio - MANLEY - BMW

Upgrade to Manley's Platinum Series Extreme Duty Pistons for increased performance! Stock 10.2:1 Compression Ratio .50mm Oversize

Brand:
MANLEY - Corporate Logo
ES#:
4685591
Mfg#:
646005CE-6
Back Ordered
8% off MSRP

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

$1423.99

This product was last offered at the strikethrough price on
07-28-2026

$1309.99 USD
Free Shipping
on orders $49 and up

N54B30 32cc Platinum Series Dish Extreme Duty Piston Set

ES#4685589 - 646000CE-6 - N54B30 32cc Platinum Series Dish Extreme Duty Piston Set - Upgrade to Manley's Platinum Series Extreme Duty Pistons for increased performance! Stock 10.2:1 Compression Ratio - MANLEY - BMW

Upgrade to Manley's Platinum Series Extreme Duty Pistons for increased performance! Stock 10.2:1 Compression Ratio Std. Size

Brand:
MANLEY - Corporate Logo
ES#:
4685589
Mfg#:
646000CE-6
Back Ordered
8% off MSRP

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

$1423.99

This product was last offered at the strikethrough price on
07-28-2026

$1309.99 USD
Free Shipping

N55/S55 37cc Platinum Series Dish Extreme Duty Piston Set

ES#4685604 - 647000CE-6 - N55/S55 37cc Platinum Series Dish Extreme Duty Piston Set - Upgrade to Manley's Platinum Extreme Duty Pistons for increased performance! Stock 10.2:1 Compression Ratio - MANLEY - BMW

Upgrade to Manley's Platinum Extreme Duty Pistons for increased performance! Stock 10.2:1 Compression Ratio Std. Size

Brand:
MANLEY - Corporate Logo
ES#:
4685604
Mfg#:
647000CE-6
Back Ordered
8% off MSRP

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

$1423.99

This product was last offered at the strikethrough price on
07-28-2026

$1309.99 USD
Free Shipping
on orders $49 and up

More About Performance Engine Internals

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