You can't put a price on piece of mind. A simple bolt on solution to keep your engine safe from catastrophic failure.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4674312
Mfg#:
049453LA01-02
In Stock
ON SALE!
SAVE 40%
$129.99
This product was last offered at the strikethrough price on 05-02-2026
Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
...or at least as "Bulletproof" as your F3X N55 will ever be! Includes a crank bolt capture kit, crank seal plate, oil filter housing gaskets, and all of the components required to perform this upgrade service.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4365386
Mfg#:
ECSF30N55BPKT
Ships in 7 Business Days
ON SALE!
$515.99
This product was last offered at the strikethrough price on 01-03-2026
...or at least as "Bulletproof" as your F3X N55 will ever be! Includes a crank bolt capture kit, crank seal plate, oil filter housing gaskets, and all of the components required to perform this upgrade service.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! Includes 5w-40 oil which is a slighty higher viscosity than recommended by BMW - great for performance ap
Brand:
ES#:
4660307
Mfg#:
ECSF30N55BP540KT
Ships in 7 Business Days
ON SALE!
$513.99
This product was last offered at the strikethrough price on 01-03-2026
Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Protect your engine from catastrophic damage and upgrade your accessory belt with this Enthusiast Bundle!
Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
4876647
Mfg#:
049453LA01-02KT6
Ships in 1 Business Day
ON SALE!
SAVE 48%
$180.99
This product was last offered at the strikethrough price on 05-05-2026
...or at least as "Bulletproof" as your F3X N55 will ever be! Includes a crank bolt capture kit, crank seal plate, oil filter housing gaskets, and all of the components required to perform this upgrade service. Featuring Kevlar reinforced belt!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4642987
Mfg#:
ECSF30N55BPKRKT
Ships in 7 Business Days
ON SALE!
$520.99
This product was last offered at the strikethrough price on 05-02-2026
Protect your engine against harmful harmonics at all RPM levels - 10% Underdrive to increase usable horsepower without greatly affecting engine accessories
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Protect your engine against harmful harmonics at all RPM levels - 21% Underdrive to greatly increase usable horsepower for racing applications
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Lifetime Replacement
