Parts Now Pay Later with
Log In Cart
Log In

Create An Account

Log In Cart
Your Cart Is Empty
Free Shipping Over $299.99

Free Shipping Over $299.99

Orders of $299.99 or more ship free within the continental U.S.
Shipping to Alaska and Hawaii is additional and not included.
We do not ship international at this time.

Shipping Policy

GReddy Racing 12-15 Civic Si Coupe Supreme SP Exhaust
Part Number: 10158209

★★★★★ ★★★★★ 1 Reviews
GReddy Racing 12-15 Civic Si Coupe Supreme SP Exhaust-A1
GReddy Racing 12-15 Civic Si Coupe Supreme SP Exhaust-A2
Images may be for reference only

GReddy Racing 12-15 Civic Si Coupe Supreme SP Exhaust
Part Number: 10158209

★★★★★ ★★★★★ 1 Reviews
Was: $800.00
$760.00 & Free Shipping
Save: $40.00 (5%)

Reward Points

It pays to shop with K Series Parts and our reward points program! For every $1.00 you spend you earn reward points.

They are easy to earn, just log in to your account when you check out. If you don't have one it is free and easy to setup.

They are easy to use during check out. Click on the "Have Reward Points?" on the shipping and payment selection page.

Reward Point Program Details

You earn 2 points for every $1.00 that you spend.

100 points equal a $1.00 discount.

Maximum discount per order is 5% of the order total.

There is no minimum order total to redeem points.

Points do not apply to shipping or sales tax.

Points are not redeemable for cash.

The point value per dollar, points earned per purchase, and order minimum are subject to change.

Earn 1520 reward points. Learn More

Out of Stock
Enter your email address to be notified when it is back in stock.

Product Details

Part Number: 10158209
Size: 2.50 in (63.50 mm)
Body Type: Coupe
Brand: GReddy
Color: Polished

The Supreme SP for the 9th generation, (FB) Civic Si features our signature GReddy layout, styling and sound, with new revised piping diameter. It is designed to be compatible with both Si models; coupe and sedan (using the optional 11050108 adapter.) The straight-through resonator and specially-made oval muffler with off-set extended tip allows the system to follow the Civics bodies lines and help reduce drone and high pitch frequencies. It also provides good power gains throughout the usable power band. Like all GReddy Supreme SP systems the fully hand-welded 304 Stainless-Steel exhaust carries a Limited Lifetime Warranty.


  • Piping: 63.5mm (2.5")
  • Tip: 105mm (4.0 ")
  • Gasket(s): 2.5" oval (qty: 2 included) replacement
  • Resonator: Yes
  • Weight: 28.0 lbs (Stock weight 30.8 lbs)
  • Sound level: 94.0 dB(a)
  • HP: +11 hp
  • TRQ: +2 ft-lbs

Due to the manufacturer's price control policy, this item may be excluded from promotions and discounts

WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects.

Vehicle Fitment

Honda Civic
2012 Honda Civic Si Coupe
2013 Honda Civic Si Coupe
2014 Honda Civic Si Coupe
2015 Honda Civic Si Coupe

1 Reviews ★★★★★ ★★★★★

★★★★★ ★★★★★
5/5.00 Stars out of 1 Reviews
Write a Review
Perfect !!!
Elle | October 24th, 2016
Not too loud and very shuttle. There is no drone sound . Easy install . 5 stars !