Skip to content

exhaust and emissions

Borla 400287 ProXS Muffler - Un-Notched Neck

$300

Made to order

Universal fit — no vehicle-specific fitment required.

Qty
1

Free freight ≥ $999 · $40 flat below

About this part

ProXS Muffler 2.25" Dual Inlet/ 2.25" Dual Outlet 4" x 9.5" Oval 19" Long Body 24" Overall Length. Un-Notched necks are designed for weld in installation. If clamping use 3" wide band clamps 18003 (clamps not included). This muffler features an internal X-Pipe for increased performance and improved sound. Reversible design for installation flexibility. T-304 Stainless steel for superior corrosion resistance. 100% welded construction for strength. Free Flow design for improved performance. High-temperature continuous-filament fiber (CFF) acoustic material for sound control. Natural mill finish can be brushed or polished prior to installation. Best of all it's made in the USA and backed by BORLA(r)'s Million-Mile warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.

Specifications

Specifications for Borla 400287 ProXS Muffler - Un-Notched Neck
WIDTH9
HEIGHT33
LENGTH9
PROP65Yes
WEIGHT12
WARRANTYMillion-Mile Warranty on systems and parts
EMISSIONSEmissions Compliance Exempt
ATTRIBUTESBody Height:4.000 in.;Body Length:19.000 in.;Body Width:9.500 in.;Construction:All Welded;Grade Type:Performance;Inlet Connection Type:Pipe;Inlet Position:Front;Inlet Type:Dual;Main Piping Diameter:2.250 in.;Material:T-304 Stainless Steel;Muffler Count:2;Off Road Use Only:No;Outlet Outside Diameter:2.250 in.;Outlet Position:Rear;Outlet Type:Dual Outlet;Overall Length:19.000 in.;Prop 65 (C R or CR):CR;Prop 65 - Long Label:WARNING: This product in the physical form it is sold does not present a hazard. However operations including but not limited to welding brazing or thermal cutting can expose you to chemicals including Chromium Nickel Cobalt Arsenic Cadmium and Lead which are known to the State Of California to cause cancer birth defects and other reproductive harm. For more information go towww.P65Warnings.ca.gov;Prop 65 - Short Label:WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov;Prop 65 Warning Label:Proposition 65 Warning.JPG;Prop 65 Yes/No:Yes;Shape:Oval;Tip / Outlet Finish:N/A;Title:ProXS Muffler 2.25in Dual Inlet / 2.25in Dual Outlet 4in x 9.5in Oval x 19in Long Body;Title:ProXS™ Muffler With Internal X-Pipe 2.25" Dual Inlet/ 2.25" Dual Outlet 4" x 9.5" Oval x 19" Long Body Part # 400287
PCDB CATEGORYExhaust
COUNTRY OF ORIGINUS
PART TERMINOLOGYExhaust Muffler
VEHICLE SPECIFIC FITMENTN
INSTALLATION INSTRUCTIONS

Datasheet — not yet published