Flashark Long Tube Headers for BMW N52 E90/E91/E92/E93/E82
Let the straight-six breathe a little easier when the stock exhaust manifolds start feeling too quiet, too restricted, or too mild for your build. This Flashark long tube header setup is designed for selected 2006-2013 BMW models with the factory N52 engine, including E90, E91, E92, E93, and E82 applications such as the 128i, 325i, 328i, and 330i.
It is a good fit for owners who want a sharper exhaust note, better high-RPM pull, and a more responsive naturally aspirated setup without jumping straight into a full custom exhaust build. Before ordering, confirm your chassis, engine, drivetrain, and left-hand-drive layout, because N52 header fitment is not something you want to guess by model badge alone.
Specifications
| Brand | Flashark |
| Application | Long Tube Headers |
| Material | Stainless Steel |
| Surface Finish | Mirror Polish |
| Flanges | 3/8 inch thick laser-cut and CNC-machined flanges |
| Primary Diameter | 1.50 inch, 16 gauge |
| Certificate Listed | ISO9001:2000 |
Key Features
- Long tube layout: Built to improve exhaust flow compared with compact factory manifolds.
- Stainless steel construction: Designed for heat resistance and corrosion resistance in performance exhaust use.
- Mandrel-bent piping: Helps keep the exhaust path smoother through the bends.
- CNC-machined flanges: Thick flanges help support sealing when installed correctly with clean mating surfaces.
- Factory N52 platform focus: Designed around listed E90, E91, E92, E93, and E82 N52 applications.
- Sharper exhaust tone: Expect a more aggressive sound than stock, especially with freer-flowing downstream exhaust components.
- Budget-friendly performance path: A practical option for N52 owners who want header performance without paying premium-brand pricing.
Who These N52 Headers Are For
These headers make the most sense for owners who already know their BMW is a factory N52 car and want a more direct performance upgrade than a simple muffler or axle-back change.
- Owners of listed BMW E90, E91, E92, E93, and E82 models with the factory N52 engine.
- Drivers looking for better exhaust flow, stronger throttle feel, and a more aggressive exhaust tone.
- Budget-minded BMW enthusiasts building a street/track-style N52 setup.
- Cars with supporting exhaust or tune plans where header flow can be used properly.
- Experienced DIY owners with lift access and the right tools, or buyers using a qualified exhaust/performance shop.
- Not ideal for buyers who need a quiet, fully stock, emissions-inspection-safe daily driver with no risk of CEL or extra setup work.
What Problem Do These Headers Solve?
Stock Exhaust Restriction
The N52 is a smooth naturally aspirated inline-six, but the factory exhaust manifolds are compact and designed around packaging, cost, emissions, and quiet operation. Long tube headers give exhaust pulses more room to move, which can help the engine breathe better when the rest of the setup is healthy.
A More Noticeable Exhaust Character
Do not expect the car to feel like a turbo swap. That is not what headers do. What you can expect is a sharper, more mechanical exhaust note, especially when paired with a freer-flowing downstream exhaust. It will be louder than stock. How much louder depends on your mid-pipe, resonators, mufflers, and cabin insulation.
Old Hardware and Manifold Service Opportunity
On older E9x and E82 cars, removing factory manifolds often exposes tired gaskets, seized fasteners, rusty studs, and heat-cycled hardware. These headers are not a fix for misfires, VANOS faults, vacuum leaks, or bad O2 sensors, but they can be part of a planned exhaust refresh when the car is already being worked on.
Long Tube vs Shorty Headers
| Header Type | Best For | Install / Setup Notes |
|---|---|---|
| Long Tube Headers | More exhaust flow, stronger upper-RPM feel, sharper sound, performance-focused N52 builds. | More involved installation. O2 sensor routing, mid-pipe connection, clearance, tune, CEL, and emissions readiness should be checked. |
| Shorty Headers | Milder upgrades, easier packaging, users who want less installation work. | Usually less complicated, but gains are normally more modest compared with a long tube setup. |
Expected Performance Gains
For a properly fitted BMW N52 setup, a reasonable expectation is about 8–20 horsepower depending on engine condition, tune, intake setup, downstream exhaust, fuel quality, and dyno method. Mostly stock cars often land closer to the lower or middle of that range. Cars with supporting modifications and proper tuning may see better results.
Throttle response and sound are often the first things a driver notices. Peak horsepower is only part of the story; better exhaust scavenging can also make the engine feel more eager above mid-range RPM. Still, no header should be treated as a guaranteed power number. The car, the install, and the tune matter.
What Is Included
Package contents should be checked before installation. Based on the current product packaging image, the kit includes:
- Exhaust manifolds / headers × 2
- U-clamps × 2
- Gaskets × 2
- Hex bolts × 4
- Hex nuts × 4
Before bolting anything on, compare the supplied gaskets, flanges, and outlet connection with the parts removed from your vehicle. If your car has aftermarket exhaust work, do not assume the downstream connection is still factory.
Why Buy From Flashark?
- Clear fitment guidance: The fitment table and exclusion notes help reduce wrong orders before they happen.
- Hardware shown in the kit: Package images show the headers, gaskets, clamps, bolts, and nuts included with this product.
- Budget-friendly performance path: A practical long tube header option for BMW N52 owners who want more flow without premium-brand pricing.
- Product support: Customer support can help with basic fitment questions before purchase.
- Useful for common N52 upgrade goals: Better exhaust flow, sharper sound, and a more responsive naturally aspirated setup.
Shipping, Warranty & Customer Support
- Estimated Delivery: Most orders are delivered within 7-9 business days after shipment, depending on warehouse availability and destination.
- 1-Year Warranty: This product is backed by a 1-year warranty against manufacturing defects.
- Returns & Fitment Support: Please confirm your vehicle year, model, engine, and drivetrain before ordering. If you are unsure about fitment, contact customer support before purchase.
- Customer Support: Our support team can help with basic fitment questions, order issues, and warranty-related support.
Fitment & Compatibility
| Brand | Model | Year Range | Full Compatible Specs |
|---|---|---|---|
| BMW | 325i/325xi/328i/328xi/330i/330xi | 2006-2011 | 3 Series (Sedan), E90 Chassis, Factory N52 Engine |
| BMW | 325i/328i | 2006-2011 | 3 Series (Wagon), E91 Chassis, Factory N52 Engine |
| BMW | 325i/328i/330i | 2007-2012 | 3 Series (Coupe), E92 Chassis, Factory N52 Engine |
| BMW | 328i | 2007-2012 | 3 Series (Convertible), E93 Chassis, Factory N52 Engine |
| BMW | 128i | 2008-2012 | 1 Series (Coupe), E82 Chassis, Factory N52 Engine |
- Non-N52 engine configurations
- All Right-Hand Drive (RHD) vehicles
- Engine-swapped or heavily modified vehicles
BMW N52 Headers Fitment & Installation FAQ
Q1: Will these headers fit a 2007 BMW 328i E90?
A1: Yes, they are listed for 2006–2011 BMW E90 328i models with the factory N52 engine. Confirm the car is Left-Hand Drive and check whether it is RWD or a listed xi/AWD model before ordering.
Q2: Will these fit a 2006 BMW 325i?
A2: Yes, the fitment list includes 2006–2011 BMW E90 325i models with the factory N52 engine. Do not order for non-N52 engine configurations or Right-Hand Drive vehicles.
Q3: Will these fit a BMW 128i E82?
A3: They are listed for 2008–2012 BMW E82 128i models with the factory N52 engine. If your listing shows a 2013 128i or if your car has an N51/SULEV setup, contact support before purchase.
Q4: Will these headers fit 2013 BMW models?
A4: Some product listings may reference 2006–2013, but the detailed fitment table should be treated as the main guide. For any 2013 BMW, confirm the chassis, model, engine, steering position, and downstream exhaust connection with support before ordering.
Q5: What is the difference between long tube and shorty headers?
A5: Long tube headers use longer primary tubes to improve exhaust scavenging and support stronger performance potential, especially higher in the RPM range. Shorty headers are usually easier to package and install, but the gains are normally more modest.
Q6: Do I need a tune after installing N52 headers?
A6: A tune is not always physically required to bolt the headers on, but it is often recommended if you want the car to run cleaner, reduce CEL risk, improve drivability, and make better use of the added exhaust flow. Results vary by setup.
Q7: Will these headers cause a check engine light?
A7: They can. Long tube headers may affect O2 sensor readings, catalyst efficiency monitoring, and emissions readiness depending on the vehicle and exhaust setup. If CEL behavior matters to you, plan for tuning or diagnostic support before installation.
Q8: Do these headers require a Y-pipe, O2 sensor extension, or mid-pipe modification?
A8: This BMW setup should be checked at the collector and mid-pipe connection rather than treated like a truck-style Y-pipe system. O2 sensor routing, harness length, and downstream exhaust fitment should be confirmed during test-fit. Aftermarket exhaust systems may need adjustment.
Q9: Will these fit xi or AWD BMW models?
A9: The fitment list includes select 325xi, 328xi, and 330xi E90 models. Because xi/AWD cars have more front drivetrain hardware in the area, clearance should be checked carefully before final tightening.
Q10: How much horsepower can I expect?
A10: A realistic range is about 8–20 horsepower depending on tune, exhaust setup, intake, engine condition, and dyno method. Mostly stock N52 cars often land closer to the lower or middle of that range.
Q11: Will the car be louder?
A11: Yes, expect a sharper and more aggressive exhaust tone than stock. Final volume depends on the rest of your exhaust system, including the mid-pipe, resonators, mufflers, and whether the car already has aftermarket parts.
Q12: Is hardware included?
A12: The product images show headers, U-clamps, gaskets, hex bolts, and hex nuts. Always inspect the package before installation and compare parts with the original hardware removed from the vehicle.
Q13: Are these headers street legal?
A13: Do not assume street legality. Long tube headers can affect emissions equipment, inspection readiness, and catalytic converter configuration. Check your local rules before ordering, especially if your car must pass smog or emissions inspection.
Q14: How difficult is installation?
A14: Installation is moderate to difficult compared with simple exhaust bolt-ons. Tight access, old hardware, seized O2 sensors, gasket surfaces, and mid-pipe alignment can all slow the job down. Professional installation is recommended.
Q15: How long does shipping take and what support is available?
A15: Most orders are delivered within 7-9 business days after shipment, depending on warehouse availability and destination. This product is backed by a 1-year warranty against manufacturing defects, and customer support can help with basic fitment, order, return, and warranty-related questions.