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Your Vehicle 2018 Porsche 911 991 GT3 Coupe H6 4.0L

2018 Porsche 911 991 GT3 Coupe H6 4.0L Performance Exhaust Parts

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ES#4680391 - 49C36434 - MACH Force-Xp 304 Stainless Steel Secondary Muffler Delete Pipe - Boost sound and performance with this center muffler delete, featuring dual tuned Helmholtz resonators, 304 stainless steel construction, and 100% TIG-welded strength in a direct bolt-on design. - AFE - Porsche

Boost sound and performance with this center muffler delete, featuring dual tuned Helmholtz resonators, 304 stainless steel construction, and 100% TIG-welded strength in a direct bolt-on design. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AFE - Corporate Logo
ES#:
4680391
Mfg#:
49C36434
Ships in 1 Business Day
ON SALE! SAVE 14%
$1768.99

This product was last offered at the strikethrough price on
05-28-2026

$1515.60 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4680394 - 49C36435-H - MACH Force-Xp 4 IN 304 Stainless Steel Bolt-On Exhaust Tips Brushed  - Finish your Porsches rear end with these 4" 304 stainless steel bolt-on tips, delivering a clean, aggressive look with hand TIG-welded quality and effortless OEM-style installation. - AFE - Porsche

Finish your Porsche’s rear end with these 4" 304 stainless steel bolt-on tips, delivering a clean, aggressive look with hand TIG-welded quality and effortless OEM-style installation. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AFE - Corporate Logo
ES#:
4680394
Mfg#:
49C36435-H
Ships in 1 Business Day
ON SALE! SAVE 14%
$479.99

This product was last offered at the strikethrough price on
02-02-2026

$411.30 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4733194 - AWE991GT3CMD - AWE Center Muffler Delete - Porsche 997.2/991 GT3/RS - For those who want to increase tone, free up some power while dropping weight, but prefer to keep their factory side mufflers. - AWE - Porsche

For those who want to increase tone, free up some power while dropping weight, but prefer to keep their factory side mufflers. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AWE - Corporate Logo
ES#:
4733194
Mfg#:
AWE991GT3CMD
Ships on Jul 20, 2026
Starting at $1650.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4722146 - FS.POR.991CUP.SH - Fabspeed Porsche 991 GT3 Cup (2017 +) Sport Headers  - Direct replacement for the restrictive OEM headers, offering improved power and throttle response throughout the RPM range. Fits all Porsche 991 GT3 Cup vehicles 2017+ - Fabspeed - Porsche

Direct replacement for the restrictive OEM headers, offering improved power and throttle response throughout the RPM range. Fits all Porsche 991 GT3 Cup vehicles 2017+ affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Fabspeed - Corporate Logo
ES#:
4722146
Mfg#:
FS.POR.991CUP.SH
Ships on Jul 22, 2026
$5719.99 USD
Free Shipping
ES#4858607 - SSXPO126 - Milltek Cat Back Exhaust System - GT-100 Polished Tips - Made from 100% 304L aircraft grade stainless steel! Includes Dual Tips in Polished Titanium Finish. - Milltek Sport - Porsche

Made from 100% 304L aircraft grade stainless steel! Includes Dual Tips in Polished Titanium Finish. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
4858607
Mfg#:
SSXPO126
Ships in 3 Business Days
$1827.99 USD
ES#4858598 - SSXPO131 - Milltek Exhaust Tips - GT-100 Polished - GT-100 Styled Dual Exhaust Tips, Made from 304L Aircraft Grade Stainless Steel - Polished Finish - Milltek Sport - Porsche

GT-100 Styled Dual Exhaust Tips, Made from 304L Aircraft Grade Stainless Steel - Polished Finish affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
4858598
Mfg#:
SSXPO131
Ships in 3 Business Days
$829.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4858606 - SSXPO128 - Milltek Cat Back Exhaust System - GT-100 Brushed Titanium Tips - Made from 100% 304L aircraft grade stainless steel! Includes Dual Tips in Brushed Titanium Finish. - Milltek Sport - Porsche

Made from 100% 304L aircraft grade stainless steel! Includes Dual Tips in Brushed Titanium Finish. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
4858606
Mfg#:
SSXPO128
Ships in 3 Business Days
$2182.99 USD
ES#4858600 - SSXPO132 - Milltek Exhaust Tips - GT-100 Cerakote Black - GT-100 Styled Dual Exhaust Tips, Made from 304L Aircraft Grade Stainless Steel - Cerakote Black Finish - Milltek Sport - Porsche

GT-100 Styled Dual Exhaust Tips, Made from 304L Aircraft Grade Stainless Steel - Cerakote Black Finish affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
4858600
Mfg#:
SSXPO132
Ships in 3 Business Days
$916.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4858601 - SSXPO133 - Milltek Exhaust Tips - GT-100 Brushed Titanium - GT-100 Styled Dual Exhaust Tips, Made from 304L Aircraft Grade Stainless Steel - Brushed Titanium Finish - Milltek Sport - Porsche

GT-100 Styled Dual Exhaust Tips, Made from 304L Aircraft Grade Stainless Steel - Brushed Titanium Finish affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
4858601
Mfg#:
SSXPO133
Ships in 3 Business Days
$1184.99 USD
Free Shipping
on orders $49 and up
ES#4858609 - SSXPO129 - Milltek Cat Back Exhaust System - Uses OE Tips - Made from 100% 304L aircraft grade stainless steel! Uses your factory tips. - Milltek Sport - Porsche

Made from 100% 304L aircraft grade stainless steel! Uses your factory tips. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
4858609
Mfg#:
SSXPO129
Ships in 3 Business Days
$1118.99 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#4858608 - SSXPO127 - Milltek Cat Back Exhaust System - GT-100 Cerakote Black Tips - Made from 100% 304L aircraft grade stainless steel! Includes Dual Tips in Cerakote Black Finish. - Milltek Sport - Porsche

Made from 100% 304L aircraft grade stainless steel! Includes Dual Tips in Cerakote Black Finish. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
4858608
Mfg#:
SSXPO127
Ships in 3 Business Days
$1915.99 USD
Free Shipping
on orders $49 and up
ES#4668667 - VR-991GT3-170B - Valvetronic Exhaust System - 304 Stainless Steel - VR Performance  - Porsche

304 Stainless Steel affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
VR Performance  - Corporate Logo
ES#:
4668667
Mfg#:
VR-991GT3-170B
Ships in 10 Business Days
$1500.00 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#5457434 - UVM76MMTSTYLEX1 - Universal T-Style Valved Muffler Kit - Single Inlet / Dual Outlet - 3.0" (76mm) - 1 Muffler - 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 - Valvetronic Designs - Audi BMW Volkswagen Mercedes Benz MINI Porsche

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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Valvetronic Designs - Corporate Logo
ES#:
5457434
Mfg#:
UVM76MMTSTYLEX1
Ships in 1 Business Day
$499.99 USD
Free Shipping
ES#5457436 - UVM.76MM.X2 - Universal Valved Muffler Kit - Single Inlet / Single Outlet - 3.0" (76mm) - 2 Mufflers - 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 - Valvetronic Designs - Audi BMW Volkswagen Mercedes Benz MINI Porsche

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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Valvetronic Designs - Corporate Logo
ES#:
5457436
Mfg#:
UVM.76MM.X2
Ships in 1 Business Day
$599.99 USD
Free Shipping
ES#5457432 - UVM76MMDUALOUTx1 - Universal Valved Muffler Kit - Single Inlet / Dual Outlet - 3.0" (76mm) - 1 Muffler - 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 - Valvetronic Designs - Audi BMW Volkswagen Mercedes Benz MINI Porsche

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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Valvetronic Designs - Corporate Logo
ES#:
5457432
Mfg#:
UVM76MMDUALOUTX1
Ships in 1 Business Day
$399.99 USD
Free Shipping
ES#5457404 - VTDTIPSW3035BRT - Universal Single Exhaust Tip - 3.5" - Single Wall Burnt - 3.0" Inlet - 3.5" Outlet - Single Wall Burnt Steel - Valvetronic Designs - Audi BMW Volkswagen Mercedes Benz MINI Porsche

3.0" Inlet - 3.5" Outlet - Single Wall Burnt Steel affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Valvetronic Designs - Corporate Logo
ES#:
5457404
Mfg#:
VTDTIPSW3035BRT
Ships in 1 Business Day
ON SALE! SAVE 10%
$79.99

This product was last offered at the strikethrough price on
06-28-2026

$71.99 USD
Free Shipping

More About Performance Exhaust Parts

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.

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

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