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Kooks Universal Nascar Modified Spec Muffler - QCN350
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Kooks Headers
SKU:
KSHQCN350
|
- UPC:
- 842422136468
$108.00
$116.52
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$8.52
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Part details
- Part number
- KSHQCN350
- Manufacturer part number
- QCN350
- UPC
- 842422136468
- Brand
- Kooks Headers
- Part type
- Muffler
- Prop 65
- ⚠️ WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov
- Special order
- Yes — ordered in for you; allow extra time
- Instructions
- Installation instructions (PDF)
- Material
- 304 stainless steel
Installation guide (from Kooks Headers)
Hosted by Kooks Headers. Follow the maker's instructions and torque specs.
- Box size:
- 6.00 × 6.00 × 6.00 (in)
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Only 3 left in stock
Kooks Headers and Exhaust has been the leader in the High Performance Exhaust Industry for over 50 Years! Since 1962, Kooks takes pride in offering the best Headers and complete exhaust systems for your street, race and off-road applications. We have won hundreds of championships and set countless records in the NHRA, IHRA, NMCA, NMRA, NASCAR, NASA, SCCA and many other racing organizations. Now with three generations of family leadership, we are proud to say that all of our products are handcrafted here in the USA and we are proud to still be independently owned and operated. And don't forget, "Get Kookin with KOOKS!"
3-1/2in. NASCAR Whelen Modified Spec Muffler. Polished Stainless Steel. Quad-Core Style Directional Muffler. 8in. Long Body. 16in. Overall Length. 5in. O.D. Body. 3-1/2in. I.D. Inlet. 3-1/2in. O.D. Outlet. Sold Individually.
3-1/2in. NASCAR Whelen Modified Spec. Muffler-8in. Long Body
3-1/2" NASCAR Whelen Modified Spec. Muffler - 8" Long Body
- Manufactured In The USA. Kooks Uses T304 Aircraft Quality Stainless Steel. Kooks Products are Backed by a Limited Lifetime Warranty To the Original Purchaser. Kooks Products Are Dyno And Race Tested and Designed For Maximum Power.
- Kooks Headers And Exhaust Make The Most Power In The Industry
- Kooks System Are Specifically Designed For Maximum Power
- Kooks Products Are Made Of T304 Air Craft Quality Steel
- Limited Lifetime Warranty To Original Purchaser
- 3 Generations Being Family Owned And Operated
- Every Kooks Product Is Dyno And Race Tested
- Kooks Products Fit And Install The Best
- 100 Percent Manufactured In The USA
- Clearance Item:
- N
- LTL:
- N
- MPN:
- QCN350
- Proposition 65:
- Y
- Special Order:
- Y
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Kooks Headers
Kooks Universal Nascar Modified Spec Muffler - QCN350
Kooks Universal Nascar Modified Spec Muffler - QCN350 FAQ
The maker's installation guide is on this page — see Installation guide under the part details for the step-by-step and the torque figures. Work on level ground with the car properly supported, and torque every fastener to the maker's figure. If the job is beyond your tools, any shop that does this kind of work can fit it.
The sound depends on the muffler and resonator design. A cat-back with a resonator stays closer to stock; an axle-back changes the tone more than the volume. Look for the maker's sound notes or a clip on this page.
Cat-back and axle-back systems bolt to the factory connection points. Headers and downpipes replace the factory pipe at the engine and may need new gaskets and hardware; see What's in the box.
A cat-back or axle-back needs no tune. Headers and downpipes change what the oxygen sensors see, so many cars need a tune or a sensor spacer to avoid a warning light.
Drone depends on the muffler and resonator design and your car's gearing. Systems with a resonator or an X-pipe drone less, and the maker notes when a system is built to be quiet at cruise.
An axle-back or cat-back is a jack-stands job with the right sockets and penetrating oil for rusty bolts. Headers and downpipes take more room and time, and a lift helps.
Most systems include the clamps and gaskets they need; see What's in the box. Reuse a factory gasket only if it is undamaged.
Yes — monthly options show right under the Add to Cart button. Affirm, Klarna, PayPal Pay Later and Snap Finance are offered at checkout, and checking what you qualify for does not affect your credit score.
Install and care: mufflers
Before you start
- Soak the factory flange bolts and hangers in penetrating oil the day before.
- Lay out the sections and clamps against What's in the box before anything goes under the car.
Do
- Hang the whole system loosely first, line it up, then tighten the clamps from the front back.
- Check for leaks at every joint with the engine running before the final tightening.
Don't
- Don't tighten any clamp fully until the whole system hangs straight.
- Don't reuse a crushed or torn factory gasket.