3.5" N55 Downpipe Upgrade for 2012 – 2013.7 BMW M135i, M335i

3.5" Catless Downpipe Upgrade for 2012–2013.7 BMW M135i, M335i (N55 Engine)

The Flashark 3.5" Catless Downpipe Upgrade is exclusively designed for 2012–2013.7 BMW M135i and M335i models equipped with the N55 engine (F20/F21/F22/F30/F32/F33/F87 chassis). As a top-tier "bang-for-the-buck" performance modification, this downpipe eliminates the restrictive factory catalytic converter to drastically reduce back pressure, unlocking faster turbo spool, increased power output, and a more aggressive exhaust note—tailored for driving enthusiasts seeking impactful upgrades. Crafted with precision for seamless fit and long-lasting reliability, it’s the ideal enhancement for N55-powered BMWs produced up to 07/13.

Fitment: (N55 Engine Only, Up to 07/13 Production)

- 2012 BMW M135i N55 (F20/F21/F22/F87)
- 2013.7 BMW M135i N55 (F20/F21/F22/F87)
- 2012 BMW M335i N55 (F30/F32/F33)
- 2013.7 BMW M335i N55 (F30/F32/F33)

 Specifications:

- Brand Name: Flashark
- Certificate: ISO9001:2000
- Application: Exhaust Downpipe Performance Upgrade
- Material: High-Quality Stainless Steel (billet stainless steel for flanges)
- Surface: Precision-Finished
- Model: FLJN-EXS22-00043002
- Piping Diameter: 3.5"
- Construction: Mandrel-Bent Piping, TIG-Welded Joints
- Flange: CNC-Precision-Machined Billet Stainless Steel

Shipping Information:

- Delivery Time: 3-5 business days
- Shipping: Free Shipping

Warranty & Return Policy:

- Duration of Warranty: 1 Year
- Return Policy: Items can be returned within 14 days of receipt
- Satisfaction Guarantee: "No Hassle" fitment and performance guarantee

Features:

- TIG-Welded Stainless Steel Construction (handcrafted for leak resistance and durability)
- Mandrel-Bent Piping with Smooth Radius Bends (reduces turbulence, maximizes exhaust flow)
- CNC-Precision-Machined Billet Stainless Steel Flanges (ensures tight seal and precision fit)
- 20–25hp Power Gains (when paired with a tune)
- Faster Turbo Spool (reduces back pressure for instant throttle response)
- Aggressive Exhaust Note (sporty sound without excessive drone)
- No cutting, drilling, or modifications needed
- Cost-Effective Performance Upgrade (high value for tangible power gains)

NOTE:

For optimal performance, pairing with a tune is recommended. This downpipe is designed for off-road or track use where emissions regulations allow. All necessary installation hardware is included.