BMW 135i/1M/335i/335is N54 High-Flow (E82/E88/E90) Downpipe — 3 Inch/76mm (2011–2013)

Name: BMW 135i/1M/335i/335is N54 High-Flow (E82/E88/E90) Downpipe — 3 Inch/76mm (2011–2013)
Brand: StealthTorque
Price: 499.00 USD
Availability: InStock

$499.00

Aftermarket downpipe for the 2011–2013 BMW 135i/1M/335i/335is N54 High-Flow (E82/E88/E90).

3 Inch/76mm. Built to the supplier's listed specification — confirm the details against your build before ordering.

Fitment: 2011–2013 BMW 135i/1M/335i/335is N54 High-Flow (E82/E88/E90). Confirm your year, model, trim and VIN before ordering.

Safety: Exhaust components reach extreme temperatures — never touch the system after driving and keep flammable materials clear. Professional installation is recommended. Check your local emissions and noise laws before modifying your exhaust; some configurations are intended for off-road or track use only.

Factory-direct from China: Made in China and sourced straight from the vetted factory — no middleman markup. Ships from our factory partner with tracking provided. Delivery times vary by destination.

Aftermarket part — not a genuine OEM product, and not sponsored or endorsed by the vehicle manufacturer. Fitment is verified on every order before it ships.

WARNING: This product can expose you to chemicals including engine exhaust, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Select your vehicle

Ships from our factory partner with tracking provided. Delivery times vary by destination.

Fitment VerifiedFree VIN check before dispatch

Real Buyer ReviewsFrom the manufacturer's listing

Tracked Factory-Direct ShippingFull tracking provided

Vetted manufacturersEvery factory is reviewed before a part earns a listing.

Fitment checked before dispatchConfirm your year, model, trim and VIN before ordering.

Tracked worldwide shippingShips from our factory partner with tracking provided. Delivery times vary by destination.

Aftermarket downpipe for the 2011–2013 BMW 135i/1M/335i/335is N54 High-Flow (E82/E88/E90).

3 Inch/76mm. Built to the supplier's listed specification — confirm the details against your build before ordering.

Fitment: 2011–2013 BMW 135i/1M/335i/335is N54 High-Flow (E82/E88/E90). Confirm your year, model, trim and VIN before ordering.

Safety: Exhaust components reach extreme temperatures — never touch the system after driving and keep flammable materials clear. Professional installation is recommended. Check your local emissions and noise laws before modifying your exhaust; some configurations are intended for off-road or track use only.

Factory-direct from China: Made in China and sourced straight from the vetted factory — no middleman markup. Ships from our factory partner with tracking provided. Delivery times vary by destination.

Does this fit my car?

Enter your vehicle details below. We'll confirm exact fitment with your year, trim and VIN before you order — never guess, never assume.

Installation: Advanced

Shipping: Ships from our factory partner with tracking provided. Delivery times vary by destination. Import duties for your country may apply at delivery.

Fitment questions, answered

Will this fit my 2011 335i?

This listing covers the 2011 to 2013 BMW 135i, 1M, 335i and 335is with the N54 engine (E82/E88/E90). Confirm your exact year, model and engine code with your VIN. N54 and N55 fitment is different and they don't interchange here.

Will this trigger a check-engine light?

High-flow downpipes change exhaust flow, which can trigger emissions codes on some cars depending on your tune and local rules. Check your local emissions regulations before ordering.

Is professional installation recommended?

Yes. Downpipe installs involve exhaust hardware, gaskets and often oxygen sensors. A professional shop with a lift should do the work.

Still unsure? Send your year, model, trim and VIN — fitment verification is free before you order.

Install Overview

Advanced 2–3 hours Lift or tall jack stands, socket set, penetrating oil, new gaskets

Professional installation is recommended. Let the exhaust fully cool first.
Soak all exhaust hardware in penetrating oil well before starting.
Disconnect oxygen sensors carefully and label them.
Remove the factory downpipe and transfer or replace gaskets.
Install the new downpipe, torquing hardware evenly to avoid leaks.
Reconnect sensors, start the car, and check for leaks and codes. Check local emissions rules before driving on public roads.

Not comfortable doing it yourself? Have a professional shop handle the install. If anything doesn't fit right, stop and contact us before forcing it.

Why StealthTorque

Same factories the industry buys from. None of the middleman markup.

Compare	StealthTorque	Typical US retailer	Marketplace sellers
Pricing	Factory-direct. No middleman markup.	Marked up through distributors and retail overhead.	No pricing standard. Varies wildly.
Manufacturer vetting	Every factory reviewed before a part earns a listing.	Varies by brand.	No vetting. Anyone can list.
Fitment verification	Free VIN check before dispatch.	Fitment charts. Rarely VIN-verified.	You're on your own.
Buyer reviews	Real reviews from the manufacturer's listing.	Store reviews only.	Often missing or unreliable.
Shipping	Tracked, factory-direct.	Domestic warehouses.	Often untracked.
Support	Direct help from people who know the parts.	Ticket queues.	None.