SKU: 94593353421

GReddy DD-R Exhaust System for Civic Si Coupe 17+ (10158600)

Sale price$423.23 Regular price$470.25
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Ships within 48 hours · Estimated delivery Sep 18 - Sep 23

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Description

GReddy DD-R Exhaust System for Civic Si Coupe 17+ (10158600)With our distinctive style and design, the Greddy Performance Products DD R is our modern interpretation of the iconic GReddy DD "Dynamic Dual" exhaust of the past. Our distinctive DD exhausts with twin high flow, low restriction compact muffler section, have always been recognized for its aggressive dual exit look and racey sound. With this new high quality, race inspired DD R, we also incorporated updated and improved, full 304 stainless steel

With our distinctive style and design, the Greddy Performance Products DD-R is our modern interpretation of the iconic GReddy DD "Dynamic Dual" exhaust of the past. Our distinctive DD exhausts with twin high-flow, low restriction compact muffler section, have always been recognized for its aggressive dual exit look and racey sound. With this new high-quality, race-inspired DD-R, we also incorporated updated and improved, full 304 stainless-steel construction and new configurable features. The GPP DD-R has been adapted to modern tuner cars to not only enhances the looks and increase the growl of the engine, but to improve performance with its carefully designed dual high-flow straight-through muffler layouts. The new configurable features on the DD-R include the twin removable tips, with various options for tips finishers and silencers. This now allows the owner to easily fine-tune the looks, sound and flow of their DD-R.

The DD-R compact dual muffler exhaust for the Honda (FC3) Civic Si coupe is designed for owners who desire a high quality, free-flowing exhaust with aggressive looks and sound to match. This full stainless-steel cat-back system begins after the front over-pipe with a 76mm (3") front-pipe with tucked resonator to a full 3" mid-pipe all the way back to the rear section. The 3" piping then splits to two large 63.5mm (2.5") inlets for the polished, 101.5mm (4") DD-R mufflers via our precision Y-pipe. The DD-R is finished off with removable dual GPP engraved stainless steel slash-cut tips. The DD-R's removable tips allow for customization with various optional tips and muffler silencers (sold separately.)

Features:

  • Full Stainless Steel Construction
  • Expertly Crafter Welds
  • Removeable Tips
  • Impressive Exhaust Tone
  • Various Options for Tips and Silencers
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 94593353421

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4.3 ★★★★★
Based on 26 reviews
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A
Verified Purchase
Anything is fixable
Lexington, US
★★★★★ 5
Used it on HVAC ductwork did its job and stuck well
Model: 197mil 31 sqft Car Sound Deadening Mat
There was a lot of material in here for the money, so a decent value, I used it for some extra sound deadening on the ductwork in my house before finishing the basement, seems to help cut down the echoes coming through the ductwork. Overall the product was good had a few pieces where the sticky tore off the foam and stuck to the paper backing but all in all no complaints.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 2, 2026
F
Verified Purchase
Fredrick McDonald
Lake Worth, US
★★★★★ 5
Exactly as described!! Easy installation.
Model: 197mil 31 sqft Car Sound Deadening Mat
Easily installed. Cut with regular scissors. Made a huge difference in interior noise.
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Reviewed in the United States on May 31, 2026
G
Verified Purchase
G.C.B.
Grantham, US
★★★★★ 4
A worthwhile addition to just butyl itself.
Model: 197mil 31 sqft Car Sound Deadening Mat
I used this as a topper to butyl sound deadening material on the floor and side panels and am very pleased. It was generally easy to use. It is very sticky and cannot be easily repositioned as the foam will separate from the sticky side if you try, but its not a big deal. I have yet to run the car but the panels are much quieter when tapped on vs just the butyl alone, and this stuff weighs almost nothing.
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Reviewed in the United States on February 17, 2026
B
Verified Purchase
Bret Jackson
Dallas, US
★★★★★ 5
Good deadening
Model: 197mil 31 sqft Car Sound Deadening Mat
This sound deadening works well and has good adhesion .
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Reviewed in the United States on May 18, 2026
M
Verified Purchase
Mags
Pawtucket, US
★★★★★ 5
Easy to install and great value.
Model: 197mil 31 sqft Car Sound Deadening Mat
Very easy to cut and install with the rollers I bought separately. It adheres well even though I was installing it when the weather was closer to 40-50 degrees. Definitely helps to deaden the sound from the bare sheet metal.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 2, 2026

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