BMW 135i 335i N54 Decat Downpipes, 5 Inch Stepped Front Mount Intercooler and High Flow Inlets Kit 2006 to 2010 E90 E91 E92 E93 E82 E88
Unlock serious performance on your twin turbo BMW N54 engine with this proven package. Perfect for BMW 335i and 135i owners who want faster spool, lower intake temps and a harder hitting, more aggressive exhaust note. This bundle combines stainless steel de-cat downpipes, a high efficiency stepped 5 inch FMIC and high flow silicone intake hoses with RamAir filters. Ideal for Stage 1, Stage 2 and big power N54 builds, track cars and fast road E9x and E8x platforms.
Why choose this N54 performance package
- Maximum flow and faster turbo spool for sharper throttle response
- Lower exhaust back pressure and lower intake air temperatures for consistent power
- Noticeable power gains, stronger mid-range and a more aggressive BMW 335i and 135i sound
- Direct fit to N54 E90 E91 E92 E93 and E82 E88 with quality parts we have used and recommend
Stainless Steel Decat Downpipes for BMW 135i 335i N54
- Manufactured from T304 high grade stainless steel, tig welded
- UK fabricated with 10 to 12 mm laser cut flanges for strength and perfect sealing
- Made from a single piece using 12 axis CNC tube bending for smooth, turbulence free gas flow and maximum internal bore without sacrificing mid-range torque
- Sharper throttle response from quicker turbocharger spool
- Lower EGTs and reduced back pressure to relieve the turbochargers and increase cylinder charge
- Substantial weight saving versus the factory catalytic converters
- Gains tested at 12 to 17 bhp on the N54, with a noticeably harder exhaust note
Recommended: add a Lambda sensor spacer or O2 sensor spacer to help prevent an engine light in most cases. See our other items.
MTC Motorsport Stepped 5 Inch Front Mount Intercooler for N54
- Bar and plate core with flowed cast end tanks for maximum cooling efficiency
- Massive 5 inch competition core, near 100 percent more volume and 100 percent more surface area versus stock
- Proven to support over 600 bhp builds
- Direct fit upgrade with typical install time around 1 to 2 hours
Road tested back to back over five pulls: both the standard intercooler and the MTC unit saw similar intercooler intake temps of 135 to 140 degrees. Outlet temps into the engine were 75 to 80 degrees on the stock cooler and in the high 20s with the MTC intercooler, run after run. We would go as far as to say this is one of the best intercoolers on the market for these N54 models and a must for reliable performance.
MTC Motorsport High Flow Intake Hose Kit for N54 BMW 135i and 335i
- Designed for standard N54 turbos with a 45 mm inlet. If you run 50 mm hybrid turbos, see our other product options
- Keeps the OEM location while removing the restrictive factory pipework
- High quality silicone hoses, metal wire reinforced for maximum strength and shape retention
- Fluoro lined to resist discolouration and oil vapour
- Smoother, higher flow path into the turbos. One of the best value N54 modifications with reported gains around 60 bhp from intakes alone, depending on supporting mods and calibration
Included in the intake kit
- 2 x Reinforced silicone intake hoses
- 2 x RamAir performance filters
- 2 x 57 mm alloy joiners
- 2 x 25 mm alloy joiners
Fitment and compatibility
This package fits 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
Installation and support
- Professional installation is recommended. Exhaust tolerances vary and space is tight on the N54
- We offer fitting at Nforcd in Warwickshire. For a quote email Sales@nforcd.com
Warranty and notes
- Product includes a lifetime warranty
- De-cat downpipes are intended for off road and track use. Check local regulations before use on public roads
Why buy from Nforcd
We have installed and used these N54 downpipes, intercoolers and inlets on our own projects and for our customers. The results are consistently excellent with stronger, repeatable performance and cooler intake temps. Our customers love the transformation in response and sound on the BMW 335i and BMW 135i. If you are building a fast road E90 E92 E93 or E82 E88, or targeting reliable track performance, this kit is a top choice.
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