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2015-2021 WRX STI Mods

GrimmSpeed Downpipe to Catback 3" Gasket 2x Thick

Original price $29.00
Original price $29.00 - Original price $29.00
Original price $29.00
Current price $26.10
$26.10 - $26.10
Current price $26.10

DESCRIPTION Tired of the endless searching for a 3" 2 Bolt premium gasket that doesn't blow out? Most aftermarket Subaru exhaust systems need a 3" ...

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GrimmSpeed Turbo to Downpipe Gasket 2002-2014 WRX / 2004-2021 STI

Original price $20.00
Original price $20.00 - Original price $20.00
Original price $20.00
Current price $18.00
$18.00 - $18.00
Current price $18.00

DESCRIPTION The GrimmSpeed Turbo To Downpipe Gasket is made using a premium multi-layer steel with a stainless steel fire-ring, this gasket surpass...

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GrimmSpeed Downpipe to Catback 3" Gasket

Original price $24.00
Original price $24.00 - Original price $24.00
Original price $24.00
Current price $21.60
$21.60 - $21.60
Current price $21.60

DESCRIPTION Tired of the endless searching for a 3" 2 Bolt premium gasket that doesn't blow out? Most aftermarket Subaru exhaust systems need a 3" ...

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GrimmSpeed Stock Downpipe to Aftermarket 3" Catback Adapter

Original price $60.00
Original price $60.00 - Original price $60.00
Original price $60.00
Current price $54.00
$54.00 - $54.00
Current price $54.00

DESCRIPTION The Grimmspeed OEM Downpipe To 3-Inch Cat-Back Adapter is very popular for those of you who are retaining the stock downpipe and need t...

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Invidia R400 Gemini Black Tip Catback Exhaust WRX/STI 2015-2021

Original price $2,674.00
Original price $2,674.00 - Original price $2,674.00
Original price $2,674.00
Current price $1,738.10
$1,738.10 - $1,738.10
Current price $1,738.10

DESCRIPTION The Invidia Gemini R400 Single-Layer Cat-Back Exhaust System with Black Tips is engineered for performance enthusiasts seeking improved...

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Invidia R400 Gemini Polished Tips Catback Exhaust WRX/STI 2015-2021

Original price $2,480.80
Original price $2,480.80 - Original price $2,480.80
Original price $2,480.80
Current price $1,612.52
$1,612.52 - $1,612.52
Current price $1,612.52

DESCRIPTION The Invidia Gemini Single Layer Cat-Back Exhaust System with Stainless Steel Tips is a premium performance upgrade for 2015-2021 Subaru...

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Invidia Full Titanium Single Exit Catback Exhaust 2015-2021 WRX/STI

Original price $2,102.80
Original price $2,102.80 - Original price $2,102.80
Original price $2,102.80
Current price $1,366.82
$1,366.82 - $1,366.82
Current price $1,366.82

DESCRIPTION The Invidia Full Titanium Cat-Back Exhaust System is the pinnacle of performance and design for 2015-2021 Subaru WRX and STI models. Cr...

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Invidia Q300 Titanium Tip Catback Exhaust 2015-2021 WRX/STI

Original price $2,640.40
Original price $2,640.40 - Original price $2,640.40
Original price $2,640.40
Current price $1,716.26
$1,716.26 - $1,716.26
Current price $1,716.26

DESCRIPTION The Invidia Q300 Quad Tip Cat-Back Exhaust System with Titanium Burnt Tips is the perfect performance upgrade for 2015-2021 Subaru WRX/...

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Invidia Q300 Stainless Tip Catback Exhaust 2015-2021 WRX/STI

Original price $2,480.80
Original price $2,480.80 - Original price $2,480.80
Original price $2,480.80
Current price $1,612.52
$1,612.52 - $1,612.52
Current price $1,612.52

DESCRIPTION The Invidia Q300 Quad Tipped Cat-Back Exhaust System with Stainless Steel Tips is a premium performance upgrade for the 2015-2021 Subar...

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Invidia Equal Length Race Exhaust Manifold 2008-2014 WRX / 2004-2021 STI

Original price $1,830.73
Original price $1,830.73 - Original price $1,830.73
Original price $1,830.73
Current price $1,189.97
$1,189.97 - $1,189.97
Current price $1,189.97

DESCRIPTION The Invidia Equal Length Race Exhaust Manifold is engineered for Subaru models like the 2005+ STI and 2008-2014 WRX, delivering peak pe...

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Invidia N1 Burnt Tip Dual Catback Exhaust 2015-2021 WRX/STI

Original price $1,869.00
Original price $1,869.00 - Original price $1,869.00
Original price $1,869.00
Current price $1,214.85
$1,214.85 - $1,214.85
Current price $1,214.85

DESCRIPTION The Invidia N1 Dual Exit Cat-Back Exhaust System with Titanium Tips is a high-performance upgrade for the 2015-2021 Subaru WRX/STI, des...

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Invidia N1 Stainless Tip Dual Catback Exhaust 2015-2021 WRX/STI

Original price $1,813.00
Original price $1,813.00 - Original price $1,813.00
Original price $1,813.00
Current price $1,178.45
$1,178.45 - $1,178.45
Current price $1,178.45

DESCRIPTION The Invidia N1 Cat-Back Exhaust System with Stainless Steel Tips is the ultimate upgrade for 2015-2021 Subaru WRX and STI enthusiasts. ...

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Invidia Q300 Resonated Single Exit Catback 2015-2021 WRX/STI

Original price $1,666.00
Original price $1,666.00 - Original price $1,666.00
Original price $1,666.00
Current price $1,082.90
$1,082.90 - $1,082.90
Current price $1,082.90

DESCRIPTION The Invidia Q300 Single Exit Cat-Back Exhaust System with Stainless Steel Tip is a premium performance upgrade for 2015-2021 Subaru WRX...

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Invidia N1 Racing Burnt Tip Single Exit Exhaust 2015-2021 WRX/STI

Original price $1,390.20
Original price $1,390.20 - Original price $1,390.20
Original price $1,390.20
Current price $903.63
$903.63 - $903.63
Current price $903.63

DESCRIPTION The Invidia N1 Racing Series Single Exit Cat-Back Exhaust with Titanium Tip is engineered for 2015-2021 Subaru WRX/STI models to delive...

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Invidia N1 Burnt Tip Single Exit Exhaust 2015-2021 WRX/STI

Original price $1,587.60
Original price $1,587.60 - Original price $1,587.60
Original price $1,587.60
Current price $1,031.94
$1,031.94 - $1,031.94
Current price $1,031.94

DESCRIPTION The Invidia N1 Single Exit Cat-Back Exhaust System with Titanium Tip is a premium performance upgrade for the 2015-2021 Subaru WRX/STI....

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Invidia N1 Stainless Tip Single Exit Exhaust 2015-2021 WRX/STI

Original price $1,587.60
Original price $1,587.60 - Original price $1,587.60
Original price $1,587.60
Current price $1,031.94
$1,031.94 - $1,031.94
Current price $1,031.94

DESCRIPTION The Invidia N1 Single Exit Cat-Back Exhaust System with Stainless Steel Tip is a high-performance upgrade tailored for 2015-2021 Subaru...

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Invidia Lower Catted Downpipe Divorced Wastegate w/ 2 Bungs 2008-2014 WRX / 2008-2021 STI

Original price $1,428.00
Original price $1,428.00 - Original price $1,428.00
Original price $1,428.00
Current price $799.00
$799.00 - $799.00
Current price $799.00

DESCRIPTION The Invidia Lower Catted Divorced Wastegate Downpipe with 2 Bungs takes your Subaru’s performance to the next level. Engineered with a ...

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Invidia Catted Downipe Divorced Wastegate w/ 2 Bungs 2008-2014 WRX / 2008-2021 STI

Original price $1,428.00
Original price $1,428.00 - Original price $1,428.00
Original price $1,428.00
Current price $759.00
$759.00 - $759.00
Current price $759.00

DESCRIPTION The Invidia Catted Divorced Wastegate Downpipe with 2 Bungs takes your Subaru’s performance to the next level. Engineered with a larger...

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Invidia Catted Downipe Divorced Wastegate 2008-2014 WRX / 2008-2021 STI

Original price $993.00
Original price $993.00 - Original price $993.00
Original price $993.00
Current price $629.00
$629.00 - $629.00
Current price $629.00

DESCRIPTION The Invidia Catted Divorced Wastegate Downpipe is the ultimate performance upgrade for Subaru models, including the 2008-2014 WRX and 2...

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Invidia Up Pipe w/o EGT Bung 2002-2014 WRX / 2004-2021 STI

Original price $280.28 - Original price $280.28
Original price
$280.28
$280.28 - $280.28
Current price $280.28

DESCRIPTION The Invidia Up-Pipe - No EGT Bung is a premium upgrade for Subaru owners looking to improve exhaust flow and turbo efficiency. Designed...

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Invidia Up Pipe w/ EGT Bung 2002-2014 WRX / 2004-2021 STI

Original price $280.28 - Original price $280.28
Original price
$280.28
$280.28 - $280.28
Current price $280.28

DESCRIPTION The Invidia Up-Pipe is a high-performance upgrade for Subaru models, designed to replace the restrictive and failure-prone factory up-p...

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Invidia 3" Downpipe to 2.5" Exhaust Adapter 2008-2021 WRX/STI

Original price $98.00
Original price $98.00 - Original price $98.00
Original price $98.00
Current price $63.70
$63.70 - $63.70
Current price $63.70

DESCRIPTION The Invidia 3-Inch Downpipe to Stock Cat-Back Exhaust Adapter is the ultimate solution for seamlessly connecting your 3-inch downpi...

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Invidia Stock Downpipe to 3" Exhaust Adapter 2008-2021 WRX/STI

Original price $98.00
Original price $98.00 - Original price $98.00
Original price $98.00
Current price $63.70
$63.70 - $63.70
Current price $63.70

DESCRIPTION The Invidia Stock Downpipe to 3" Exhaust Adapter is a simple yet essential component for seamlessly connecting your stock downpipe to a...

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Invidia N1 Exhaust Silencer 101MM

Original price $70.00
Original price $70.00 - Original price $70.00
Original price $70.00
Current price $45.50
$45.50 - $45.50
Current price $45.50

DESCRIPTION The Invidia N1 Exhaust Silencer is a universal 101mm solution designed for Invidia N1 systems, offering a practical way to reduce exhau...

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Invidia N1 Catback Exhaust w/ Bead Blasted Piping Titanium Tip 2015-2021 WRX/STI

Original price $1,390.20
Original price $1,390.20 - Original price $1,390.20
Original price $1,390.20
Current price $903.63
$903.63 - $903.63
Current price $903.63

DESCRIPTION The Invidia N1 Single Exit Cat-Back Exhaust System with Bead Blasted Piping and Titanium Tip is a top-tier upgrade for 2015-2021 Subaru...

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Invidia Catted Downpipe w/ 2 Bungs 2015-2021 WRX CVT

Original price $1,782.20
Original price $1,782.20 - Original price $1,782.20
Original price $1,782.20
Current price $999.00
$999.00 - $999.00
Current price $999.00

DESCRIPTION The Invidia Catted Downpipe with 2 Bungs is precision-engineered to elevate the performance of your 2015-2021 Subaru WRX (CVT). By repl...

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Invidia Catted Downpipe w/ 2 Bungs 2015-2021 WRX

Original price $1,782.20
Original price $1,782.20 - Original price $1,782.20
Original price $1,782.20
Current price $899.00
$899.00 - $899.00
Current price $899.00

DESCRIPTION The Invidia Catted Downpipe with 2 Bungs is a game-changing upgrade for manual Subaru WRX models from 2015-2021. Designed to replace th...

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MBRP Race 3" Stainless Steel Quad Tip Catback Exhaust 2015-2021 WRX/STI

Original price $934.99 - Original price $934.99
Original price
$934.99
$934.99 - $934.99
Current price $934.99

MBRP® Cat-Back Performance Exhaust for Subaru WRX2.0L, Subaru WRX STI 2.5L Models. 3" Cat-Back, Dual Split Rear Exit, T304 Stainless Steel, RACE Ve...

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MBRP Race 3" Carbon Fiber Quad Tip Catback Exhaust 2015-2021 WRX/STI

Original price $1,049.99 - Original price $1,049.99
Original price
$1,049.99
$1,049.99 - $1,049.99
Current price $1,049.99

MBRP® Cat-Back Performance Exhaust for Subaru WRX2.0L, Subaru WRX STI 2.5L Models. 3" Cat-Back, Dual Split Rear Exit, T304 Stainless Steel, RACE Ve...

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GrimmSpeed Unequal Length Header 2002-2014 WRX/ 2004-2021 STI

Original price $999.00
Original price $999.00 - Original price $999.00
Original price $999.00
Current price $899.10
$899.10 - $899.10
Current price $899.10

DESCRIPTION GrimmSpeed believes that there has not been any major changes to the unequal exhaust manifold in some time, and this is due to the tigh...

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Remark R1-Spec Stainless Steel Catback Exhaust 2015-2021 WRX/STI

Original price $995.00 - Original price $995.00
Original price
$995.00
$995.00 - $995.00
Current price $995.00

This is the Remark R1-Spec Cat-Back Exhaust System. This is a high-performance exhaust system inspired by track-oriented exhaust systems designed w...

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Remark R1-Spec Titanium Catback Exhaust 2015-2021 WRX/STI

Original price $1,095.00 - Original price $1,095.00
Original price
$1,095.00
$1,095.00 - $1,095.00
Current price $1,095.00

This is the Remark R1-Spec Cat-Back Exhaust System. This is a high-performance exhaust system inspired by track-oriented exhaust systems designed w...

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Remark 3.5" Stainless Single Wall Axleback 2015-2021 WRX/STI

Original price $595.00 - Original price $595.00
Original price
$595.00
$595.00 - $595.00
Current price $595.00

Direct bolt-on easy installation to the factory OEM or Remark mid Y-pipe (Please note : this product will NOT fit aftermarket exhaust system)

Remark 3.5" Stainless Double Wall Axleback 2015-2021 WRX/STI

Original price $655.00 - Original price $655.00
Original price
$655.00
$655.00 - $655.00
Current price $655.00

Direct bolt-on easy installation to the factory OEM or Remark mid Y-pipe (Please note : this product will NOT fit aftermarket exhaust system)

Remark 3.5" Burnt Stainless Double Wall Axleback 2015-2021 WRX/STI

Original price $715.00 - Original price $715.00
Original price
$715.00
$715.00 - $715.00
Current price $715.00

Direct bolt-on easy installation to the factory OEM or Remark mid Y-pipe (Please note : this product will NOT fit aftermarket exhaust system)

Remark 3.5" Burnt Stainless Single Wall Axleback 2015-2021 WRX/STI

Original price $695.00 - Original price $695.00
Original price
$695.00
$695.00 - $695.00
Current price $695.00

Direct bolt-on easy installation to the factory OEM or Remark mid Y-pipe (Please note : this product will NOT fit aftermarket exhaust system)

If you own a Subaru WRX STI, you know you have the perfect platform to craft a masterpiece on wheels. At WRXDaily, we understand that every enthusiast has a vision, and we’re here to offer the WRX STI mods you need to bring yours to life. With products tailored to elevate performance, enhance style, and perfect handling, our curated selection puts endless possibilities at your fingertips. 

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With WRXDaily, your Subaru becomes a true reflection of your style and ambition. Browse our selection of WRX STI mods today and start your next build!