Outdated Internet Browser Detected

It appears that the Internet Browser you are using to connect to SummitRacing.com is outdated and insecure. To continue to use SummitRacing.com, you must upgrade your browser to a newer, secure version. Use these links to help you upgrade your browser.

In-Store Pickup Location Close

Hooker Super Competition Turbo Mufflers 21105HKR

Muffler, Super Competition Turbo, 2 1/4 in. Inlet/2 1/4 in. Outlet, Steel, Aluminized, Each

Estimated Ship Date: Today Would you rather pick it up? Select Location

Manufacturer's Part Number: 21105HKR
Part Type: Mufflers
Summit Racing Part Number: HOK-21105HKR

UPC: 700414030296
Case Shape: Oval
Inlet Diameter (in): 2.250 in.
Inlet Quantity: One
Inlet Location: Offset
Outlet Diameter (in): 2.250 in.
Outlet Quantity: One
Outlet Location: Center
Internal Construction: Turbo-style
Muffler Material: Steel
Muffler Finish: Aluminized
Case Length (in): 14.000 in.
Overall Length (in): 18.500 in.
Thickness (in): 4.250 in.
Width (in): 9.750 in.
Outlet Style: Standard, without tip
Quantity: Sold individually.
In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

These mufflers have a powerful exhaust sound on acceleration, but are quiet at cruising speeds. They have the lowest backpressure of all popular turbo mufflers tested. Their compact muffler design flows either direction, allowing easy installation. They feature aluminized and double-wrapped steel construction for longer life, a unique design to prevent structural damage from vibration, heat, and backfires, and an internal drainage system to reduce corrosion.


Most Helpful Reviews Review this Product

1 Customer Reviews for Hooker Headers 21105HKR - Hooker Super Competition Turbo Mufflers

Average Customer Review

5 Star


4 Star


3 Star


2 Star


1 Star

+See All 1 Reviews

A Little Quiet

Summit RacingSummit Racing Verified Purchase

These mufflers have a nice tone at idle. They get louder when you get on it. No drone at all. I cruise at 2800 rpms at 60mph. I would probably would have put a louder muffler on initially if I knew how quiet these were.

0 of 0 found this review helpful.

report abuse

Report Abuse Close

If you feel that this review is inappropriate and should be removed from the site, report it to us by clicking the "Report Abuse" button below.


Reviewer: CRAIG from TX

Date: May 13, 2014

Ease of Installation

Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

Back To Results
Email this page Close