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BMW F91 M8 Competition S63 4.4L

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BMW F91 M8 Competition S63 4.4L Performance Exhaust Parts & Upgrades

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Xforce Smartbox Varex Muffler ECU Upgrade Module

Manually and automatically adjust the exhaust sound level

Brand:
XForce - Corporate Logo
ES#:
4784759
Mfg#:
VKSB01-ECU-MODUL
Ships in 2 Business Days
$399.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

XForce Varex Toggle Switch

Control your Varex valve with the press of a button

Brand:
XForce - Corporate Logo
ES#:
4784773
Mfg#:
VK05-ACTUATOR
Ships in 2 Business Days
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal Single Exhaust Tip - 3.5" - Forged Carbon Fiber

ES#4708458 - VTTPSLVE3035FC - Universal Single Exhaust Tip - 3.5" - Forged Carbon Fiber - 3.0" Inlet - 3.5" Outlet - Forged Carbon Sleeve - Valvetronic Designs - Audi BMW Volkswagen Mercedes Benz MINI Porsche

3.0" Inlet - 3.5" Outlet - Forged Carbon Sleeve

Brand:
Valvetronic Designs - Corporate Logo
ES#:
4708458
Mfg#:
VTTPSLVE3035FC
Ships in 6 Business Days
$89.99

This product was last offered at the strikethrough price on
05-19-2026

$83.99 USD
Free Shipping

Cat Back System - Polished Tips

An entire system from the downpipes back for a full sound overhaul! For Vehicles With OPF (2020+)

Brand:
Milltek Sport - Corporate Logo
ES#:
4447572
Mfg#:
SSXBM1185
Ships on Aug 20, 2026
$4130.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Turner Motorsport Double Wall Slash Cut Exhaust Tips - 2.75 Inlet - 3.5 OD - Stepped Left And Stepped Right- Titanium Black Chrome

Your BMW's factory exhaust tips are fine for getting groceries, but if you've upgraded your valence or just want a rear-end aesthetic that matches your car's performance pedigree, "fine" doesn't cut it. It's time for an attitude adjustment. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
5481264
Mfg#:
026732TMS03KTKT
Ships on Oct 29, 2026
Auto Notify
$279.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS "Ti.22" UNIVERSAL Exhaust Tips - 4.0" Titanium - Matte Finish - Set of Four

ES#4505622 - 011966LA07-06KT - ECS "Ti.22" UNIVERSAL Exhaust Tips - 4.0" Titanium - Matte Finish - Set of Four - 2.5" Clamp-on Inlet / 4.0" Single Wall, Slant Cut Outlet - ECS - Audi BMW Volkswagen Mercedes Benz MINI Porsche

2.5" Clamp-on Inlet / 4.0" Single Wall, Slant Cut Outlet 10X Entries For Our 25th Anniversary Sweepstakes!
Not vehicle specific. You MUST measure prior to purchasing!

Brand:
ECS - Corporate Logo
ES#:
4505622
Mfg#:
011966LA07-06KT
Ships on Feb 17, 2027
ON SALE!
$831.99

This product was last offered at the strikethrough price on
06-13-2026

$807.03 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Exhaust Parts & Upgrades

Turn up the volume and add some power with our performance exhaust options for your vehicle.

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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