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<h1>BMW 135i N54 3" CATLESS DOWNPIPES</h1>

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ARM Price $267.00

- Gain 25whp + 37wtq
-3" Design
-304 Stainless Steel
-Improved Exhaust Sound
-Run Stage 2+ Boost

Availability: IN STOCK: Typically Ships in 24hrs
Product Code: 135-DP



Take your N54 powered BMW 135i to the next level with ARM Motorsports' 3" catless downpipes. The ARM 135i catless 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 catless design, an ECU tune or CEL fix will be needed to avoid a CEL from displaying on instrument panel.

The ARM N54 catless 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 catless downpipes allows your 135i to run boost settings of Stage 2 tunes and beyond.

  • Gain 25whp + 37wtq
  • Improved Exhaust Sound
  • 304 Stainless Steel
  • Perfect Fitment
  • ARM Downpipe Set
  • New Gaskets
  • Hardware Kit

2007+ BMW 335i/is Coupe/Sedan/Convertible (N54 Only)
2008+ BMW 135i/1M (N54 Only)

Every ARM Motorsports product is backed by a lifetime warranty which is automatically issued at the time of purchase. Your warranty protects you against any defects in craftsmanship or fitment. The warranty entitles you to a replacement unit.

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 6 Write a review »

  0 of 0 people found the following review helpful:
5 of 5 Great customer support! August 23, 2019
Reviewer: Richard Morales from Wahiawa, HI United States  
When purchasing items from them I accidentally gave them the wrong address, I notified them and they were able to fix it very quickly. The quality on my chargepipe and Downpipes are very superb. Will definitely be buying from them again.

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  0 of 0 people found the following review helpful:
5 of 5 Amazing sound, easy install November 29, 2018
Reviewer: Luc Salomoni from tempe, AZ United States  
Bought these downpipes as well as the chargepipe and both have been working incredibly well since install. Downipes with stock exhaust sound absolutely amazing. I would highly recommend this set up for just the right amount of noise. The sound can't be beat.

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  0 of 0 people found the following review helpful:
5 of 5 Great fitment! September 23, 2018
Reviewer: ANTHONY NOWICKI from Mohrsville, PA United States  
Fitment was spot on. Smooth install and fast shipping. Car sounds and runs great!

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  1 of 1 people found the following review helpful:
5 of 5 Awesome Downpipes, cant beat the price and quality April 23, 2018
Reviewer: John F. from Bethlehem, PA United States  
Installation was a breeze and they have just the right amount of aggresive sound to make you smile. And the HP difference was noticable immediatly.

I also purchased the ARM Intercooler for my 135i and it is amazing as well. If you are on the fence, take my word and go with ARM their products are great.

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  0 of 0 people found the following review helpful:
5 of 5 Catless Downpipes N54 July 5, 2017
Reviewer: Skyler Sexton from Knoxville, TN United States  
Absolutely can't beat the price! Fitmeant was perfect and the product arrived quickly!

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