Replaces the restrictive factory cats with high-performance 300 cell cats for maximum performance and sound!
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Brand:
ES#:
4723512
Mfg#:
FS.POR.9861.PSC
In Stock
Limited Qty Sale
$1811.99
This product was last offered at the strikethrough price on 05-02-2026
Universal 3-Bolt flange for your custom exhaust project. Extra thick 10mm flange to avoid warping.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4007189
Mfg#:
028092ECS10AKT
In Stock
ON SALE!
SAVE 25%
$27.99
This product was last offered at the strikethrough price on 05-02-2026
Oval-port gasket between the manifold and the cylinder head - Left or right side fitment
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Fitment both before and after the catalyst - 4 required
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Brand:
ES#:
2602695
Mfg#:
98660612601
In Stock at Vendor
$120.34
This product was last offered at the strikethrough price on 02-21-2026
Oval-port gasket between the manifold and the cylinder head - Left or right side fitment
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms We Price Match - Give Us A Call or Chat!
Oval-port gasket between the manifold and the cylinder head - Left or right side fitment
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
2602733
Mfg#:
99611110755
Ships in 1 Business Day
$8.68
This product was last offered at the strikethrough price on 05-09-2026
Oval-port gasket between the manifold and the cylinder head - Left or right side fitment
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms We Price Match - Give Us A Call or Chat!
Exhaust manifold to catalytic converter - Two required
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Unlock sharper sound and instant performance gains with equal-length headers engineered for maximum flow on your 986.1 Boxster.
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Unlock your 986 Boxster’s sound and power with Maxflo—lightweight T304 stainless, high-flow HJS sport cats, dual tips, and a true bolt-on +8 whp upgrade.
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From stock exhaust system repairs to polished stainless steel performance exhaust, we have exhaust pipes, mufflers, resonators, and catalytic converters from the most respected suppliers in the business. Go loud, stay soft, look good with exhaust parts and systems from ECS Tuning.
