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Your Vehicle 1970 Mercedes Benz 300SEL Base V8 3.5L

ECS B9 S4 3.0T Center X-Pipe

The engineers at ECS Tuning have designed a direct fit dual exhaust x-pipe cross section to balance exhaust pulses and increase expulsion of exhaust gases from the engine. Installation of the Center X-Pipe increases the factory exhaust system note exponentially.

Installation is a breeze and can be easily performed with the vehicle lifted on proper jack stands in your own driveway. Our installation PDF, walks you through the install to ensure a perfect fit to your OEM exhaust. We've even included a complete set of clamps to make sure everything is properly installed without leaks.


New from ECS!

Fits:
For your Audi B9 S4 3.0T

B9 S4 3.0T Center X-Pipe
Sound great and save weight! Eliminate the center resonator on your OE system for a more aggressive exhaust note
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Brand: ECS - Corporate Logo
ES#: 3521607
Mfg#: 024365ECS01KT

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Availability:
In Stock
On SALE Save 25%
$438.99

This product was last offered at the strikethrough price on
06-13-2026

$329.24 USD
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This product is lifetime replacement eligible Lifetime Replacement

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Manufacturer names and/or part numbers are used only for identification purposes.

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