CLS63 Mid-Section with Xpipe

CLS63 Mid-Section with Xpipe

$977.00
Sale price  $977.00 Regular price  $1,029.00
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CLS63 Mid-Section with Xpipe

W219 · M156

CLS63 Mid-Section with Xpipe

While not strictly required to run MBH Motorsports long tube headers, the MBH Motorsports Stainless Steel Mid-Section with X-Pipe makes mating and installing your headers a clean, straightforward task. Engineered to eliminate restrictive factory mid-pipes, this system replaces choked factory...

$977.00
Sale price  $977.00 Regular price  $1,029.00

Guaranteed fitment

  • W219 · M156

Will it fit your car?Not sure? Email us your VIN

  • Made in the USAPhoenix, Arizona
  • Hand TIG-weldedMiller Dynasty
  • Lifetime warrantyUncoated headers & downpipes
Not sure about your car? Email us your VIN

On the dyno

What it puts down.

The gains listed for this part, measured at the wheels. Your numbers will move with the car, fuel and tune.

  • Low end of the listed gain
  • Top of the listed range
Listed gains · at the wheels
Horsepower gain · with ECU tune 10 to 15 wheel horsepower gain
From this part’s specs: +10–15 whpShows the listed range, not a dyno sheet.
CLS63 Mid-Section with Xpipe
CLS63 Mid-Section with Xpipe
$977.00

Fitment

Built for these cars

Swapped, or not listed? Email us your VIN
  • W219
    M156
    W219

Your car on the list? You're good to go.

The details

Specs & details

While not strictly required to run MBH Motorsports long tube headers, the MBH Motorsports Stainless Steel Mid-Section with X-Pipe makes mating and installing your headers a clean, straightforward task. Engineered to eliminate restrictive factory mid-pipes, this system replaces choked factory tubing with mandrel-bent 3-inch piping and deletes the unmonitored secondary catalytic converters to maximize exhaust gas velocity and scavenging efficiency.

By smoothing turbulence and equalizing exhaust pulses across cylinder banks, this mid-section upgrade delivers dyno-proven gains of 10–15 wheel horsepower while producing a crisper, more aggressive, and tuned exhaust note without harsh rasp.

Handcrafted USA Quality & Precision Bolt-On Fitment

Proudly hand-fabricated right here in the USA from heavy-duty, 16-gauge T-304 American stainless steel, this system is built to endure extreme exhaust temperatures and hard track abuse without cracking or warping. Designed for a direct bolt-on connection, it mates seamlessly from the collectors of your MBH Motorsports long tube headers directly to your factory rear resonator, eliminating the need for expensive custom exhaust fabrication.

Key Features:
  • Dyno-Proven Power: Delivers +10–15 WHP over restrictive factory mid-sections.

  • 16-Gauge T-304 US Stainless Steel: Handcrafted in the USA using premium American stainless steel for lasting structural integrity and corrosion resistance.

  • Secondary Cat Delete: Removes restrictive, unmonitored factory secondary catalytic converters to significantly reduce backpressure.

  • 3-Inch Mandrel-Bent Tubing: Replaces small-diameter OEM piping with smooth, high-flow 3-inch tubing for maximum flow capacity.

  • Integrated X-Pipe: Balances exhaust pulses between cylinder banks for optimized scavenging, improved mid-range torque, and an exotic V8 acoustic tone.

  • Direct Header-to-Resonator Fit: Engineered to bolt directly to the back of MBH Motorsports headers and mount cleanly to the OEM resonator.

Disclaimer: For off-road racing and competition use only. This product is not intended or legal for installation on registered, licensed vehicles operated on public roads or highways.

$977.00
Questions about this part?Email us your question or VIN.
Email us

Straight from the owners

Built, bolted, proven

Real cars. Real dyno sheets. Here's what owners say after the headers go on.

5.0 / 5

3 verified builds

Verified

Spools like a different car

Backpressure gone. Boost comes in a full 400rpm sooner and it pulls all the way to redline now. Fitment was dead-on — no massaging, no fighting the O2 bungs.

Marcus D.

Scottsdale, AZ · Mar 2026

W211 · E55
Verified

Welds are art

Dyno sheet doesn't lie. Cleaner welds than anything I've had under a car and the coating still looks new after a season of desert heat.

Tony R.

Dallas, TX · Feb 2026

W205 · C63 S
Verified

They actually answer the phone

Called about fitment on a swapped G-wagon and got a real person who knew the platform. Parts shipped next day.

Dave K.

Miami, FL · Jan 2026

W463 · G63

Ready for yours?

Before you order

Straight answers

The questions we get asked most.

Still not sure?

Email us your question or VIN and we'll confirm fitment before you order.

sales@mbhmotorsports.com

Will this fit my car?

It's built for W219 · M156. Pick your car in the fitment check at the top of this page to confirm. Not listed, or engine swapped? Email us your VIN and we'll confirm fitment before you order.

Is there a warranty?

Yes. Headers and downpipes we build carry a lifetime warranty (coated or painted finishes excluded). Email us with any warranty question.

Where is it made?

Right here in the USA, in our Phoenix, Arizona shop.

Can I ask a question before I order?

Yes. Email us with your car and your question and we'll get back to you. If you're unsure about fitment, include your VIN.

Built for your W219.

CLS63 Mid-Section with Xpipe · $977.00