Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button
Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button
2.5" Inlet - 3.5" Outlet - Forged Carbon Fiber Sleeve
Keep your underhood temps low and your turbo speeds high!
10X Entries Into Our F80 M3 Sweepstakes
Fits all OEM-Based K03 and K04 turbochargers
This product was last offered at the strikethrough price on
06-13-2026
3" gasket for Milltek Sport - 2 bolt flange
This product was last offered at the strikethrough price on
08-29-2026
Includes 13 stainless steel exhaust studs
Everything you need to install an exhaust from the manifold back
10X Entries Into Our F80 M3 Sweepstakes
This product was last offered at the strikethrough price on
08-31-2026
Single wall stainless steel. Single 2.25" inlet, Dual 3" outlet.
Secures items under the hood and resists rust
Should be replaced every time the downpipe is removed to prevent exhaust leaks
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
09-09-2026
Double wall stainless steel. 2.5" inlet, 3.5" outlet.
Not vehicle specific. You MUST measure prior to purchasing!
2.5" Inlet - 3.5" Outlet - Single Wall Brushed Steel
Double wall stainless steel. 2.25" inlet, 4" outlet.
3.0" Inlet - 4.0" Outlet - 1x1 Carbon Fiber Sleeve
Hardware and gasket kit for mounting turbocharger to ATP high flow manifold
1" X 3ft
Includes 2.5" sleeve & downpipe gasket, and related hardware. Made to work on 2.5" cat back systems
10X Entries Into Our F80 M3 Sweepstakes
This product was last offered at the strikethrough price on
05-02-2026