3" Stainless Steel Downpipes with High Flow Catalytic Converter
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Arguably THE BEST modification for your 135. No cutting necessary, Direct bolt-on for a complete transformation!
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Control your exhaust valves with the click of a button! Includes a standalone vacuum pump, wiring, vacuum hose, and controllers.
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Brand:
ES#:
4883843
Mfg#:
004788LA01
In Stock
ON SALE!
SAVE 10%
$100.99
This product was last offered at the strikethrough price on 06-13-2026
Choose between a 2.5" or 3.0" valved mufflers to complete your custom exhaust.
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Everything you need to install new downpipes
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Universal 4" exhaust tips with a 2.75" inlet
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Brand:
ES#:
4883965
Mfg#:
D663-0600-BOX
Ships on Jul 27, 2026
10% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$95.99
This product was last offered at the strikethrough price on 07-03-2026
Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button
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A full rear end overhaul, both functionally and aesthetically! Experience increased sound and improved rear end styling!
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Brand:
ES#:
4876606
Mfg#:
019910LAEBKT
In Stock
ON SALE!
SAVE 20%
$1376.97
This product was last offered at the strikethrough price on 05-05-2026
Lightweight axle-back featuring an exotic exhaust note. Designed for minimal drone at driving speed and maximum volume when desired.
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Complete transformation for your 1 series. Direct bolt on muffler delete for a rowdy sound and a new and improved aggressive diffuser to compliment the exhaust.
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Brand:
ES#:
4876665
Mfg#:
039172EBKT
In Stock
ON SALE!
SAVE 37%
$947.97
This product was last offered at the strikethrough price on 05-05-2026
4" Turbo to Downpipe Clamp for 4" Downpipes
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Motorsport pedigree. Superior quality. Excellent sound. Milltek Sport cat-back exhaust for enhanced performance.
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Brand:
ES#:
2827642
Mfg#:
SSXBM948
Ships in 3 Business Days
ON SALE!
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$1456.00
This product was last offered at the strikethrough price on 07-01-2026
Universal 4" exhaust tips with a 2.75" inlet
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Brand:
ES#:
4883966
Mfg#:
D663-0601-BOX
Ships on Jul 30, 2026
11% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$107.99
This product was last offered at the strikethrough price on 07-03-2026
Performance exhaust systems increase flows to improve throttle response and add power. Designed to reduce back pressure, our large selection of performance exhaust parts and performance exhaust systems is made from premium materials like stainless steel. Many are TIG welded and polished to make them as attractive as they are functional.
Lifetime Replacement
