Product Description
ARM Motorsports N54 3" Race Downpipes BMW 135i 335i N54
HIGHLIGHTS
• Gain up to +25whp / 37wtq
• Improved Exhaust Sound
• 304 Stainless Steel
• Perfect Fitment
• Improved Exhaust Sound
• 304 Stainless Steel
• Perfect Fitment
PROFILE
The ARM N54 Race downpipes eliminate the restrictive oem converters on the stock downpipes allowing the exhaust to flow more freely, increasing power and torque. Because higher boost levels generate more heat, the ARM Race downpipes allows your 135i to run boost settings of Stage 2 tunes and beyond.
CONSTRUCTION
The ARM 135i Race downpipes are designed with a 3" stainless steel construction to optimize exhaust flow and obtain optimal back-pressure. Each downpipe has 2x O2 sensor bungs so the factory BMW O2 sensors can be remounted, allowing the ECU to continue to monitor the exhaust gases. Because these downpipes are a Race design, an ECU tune or CEL fix will be needed to avoid a CEL from displaying on instrument panel.IN THE BOX
• ARM 3" Race Downpipe Set
• Hardware Kit
• Hardware Kit
• New Gaskets
FITMENT GUIDE
| Make | Chassis | Model | Engine |
| BMW | E82 | 1 M Coupe | N54 3.0L |
| BMW | E82 | 135i | N54 3.0L |
| BMW | E88 | 135i | N54 3.0L |
| BMW | E90 | 335i | N54 3.0L |
| BMW | E92 | 335i | N54 3.0L |
| BMW | E92 | 335is | N54 3.0L |
| BMW | E93 | 335i | N54 3.0L |
| BMW | E93 | 335is | N54 3.0L |
