BMW 135i N54 Decat Downpipes and Stepped Front Mount Intercooler, E82 E88 2006 to 2010, also fits BMW 335i N54 E90 E91 E92 E93 2006 to 2010
Unlock serious performance from your BMW N54 with this proven combination of stainless steel decat downpipes and a high-flow stepped intercooler. Perfect for BMW 135i and 335i owners who want faster turbo spool, stronger mid-range torque, lower intake temperatures, a harder hitting exhaust note and reliable cooling for spirited road and track use.
BMW 135i 335i N54 Stainless Steel Decat Downpipes
- High grade T304 stainless steel construction, TIG welded for strength, durability and exceptional heat resistance.
- Fabricated in the UK with laser cut flanges between 10 to 12 mm for precise, leak free fitment and long term reliability.
- Made from a single piece of stainless using a 12 axis CNC tube bending machine to maximise internal diameter and gas flow without sacrificing mid range torque.
- Sharper throttle response and faster turbo spool for a more responsive BMW 135i and BMW 335i N54.
- Real world gains we have seen of 12 to 17 bhp, with a noticeably more aggressive exhaust note that sounds fantastic without being harsh.
- Reduced exhaust backpressure and lower temperatures that help the turbochargers work more efficiently.
- Substantial weight saving compared to the factory catalytic converters.
- Includes lifetime warranty for peace of mind.
Recommended accessory to reduce the chance of an engine management light after a decat upgrade. Add Lambda or O2 sensor spacers. These are available separately.
MTC Motorsport BMW N54 135i 335i Stepped Front Mount Intercooler
- Bar and plate competition core with flowed cast end tanks designed for maximum cooling efficiency and stable IAT under repeated pulls.
- Massive 5 inch stepped core increases surface area significantly for superior heat rejection.
- Near 100 percent more internal volume and 100 percent more external surface area than the standard intercooler.
- Proven to handle over 600 bhp airflow demands on tuned N54 platforms.
- Direct fit intercooler upgrade for BMW 135i and BMW 335i N54. Typical fitting time 1 to 2 hours by a professional.
Our testing has shown fantastic results. Through five back to back road runs, intercooler intake temperatures were between 135 to 140 degrees for both stock and MTC cores. Outlet temperatures into the engine with the stock intercooler were 75 to 80 degrees. With the MTC intercooler we consistently recorded outlet temps in the high 20s across all five runs. This translates into repeatable power and safer, more consistent performance.
Why choose this BMW N54 downpipe and intercooler package
- Transform throttle response, boost control and overall drivability on your BMW 135i or 335i N54.
- Lower intake temperatures mean more timing, denser air and sustained power run after run.
- Trusted by us on our own N54 cars and loved by our customers for the quality, fit and performance per pound.
Fitment
Direct fit for the following BMW N54 twin turbo models:
- BMW 1 Series E82 E88, 135i N54, 2006 to 2010
- BMW 3 Series E90 E91 E92 E93, 335i N54, 2006 to 2010
Fitting and support
Professional fitting is recommended due to the tight clearances on some exhaust systems and for the best intercooler installation results. Book expert fitting with Nforcd in Warwickshire. Email sales@nforcd.com for a quote and availability.
Note for decat downpipes. An engine light may occur on some cars. We recommend Lambda or O2 sensor spacers. For off road and track use only where local laws allow.
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