2023-2024 Nissan Z | STILLEN Cat Back Exhaust "Street Series"

504503

Tip Style
$1,556.63
$1,556.63 $1,699.91
Shipping calculated at checkout.

I have read Axion's store policies on returns, refunds, and cancellations. I also understand that when marked on the product page, special order items may not be canceled for any reason.

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FITS: Nissan 400Z

STILLEN is excited to release the cat-back exhaust system for the 2023-2024 Nissan Z.  During the development of this exhaust system STILLEN engineers went through multiple different exhaust configurations and prototypes determine what would provide the best performance, best flow, and best sound.  

Features and benefits:

  • Limited lifetime warranty
  • 304 stainless steel
  • Made in America
  • Tig welded construction
  • CNC Machined
  • CNC mandrel bent
  • Dyno tested

After months of exhaustive testing the team determined that the best design starts with a stainless steel flange precision tig welded to 2.5” tubes leading into a CNC bent and CNC machined X pipe.  During the development the team tested a true dual exhaust system and determined that it was too loud and too “flat” sounding.  Something very common with twin turbo V6 engines.  However, in an effort to get the best performance possible we did not want to restrict the engine by going from dual 2.5” tubes to a single 3” mid-pipe.  The perfect solution was an X pipe which offered a cross-sectional area of around 4”.  This allowed the team to merge the left and right banks which improved the sound tremendously without restricting the exhaust flow.  Additionally, it allowed the team to fit the largest possible collector through the narrow chassis tunnel in the center of the car.

From the X pipe the CNC mandrel bent 304 stainless steel tubes lead into a pair of precision tig welded high polished finish, mufflers.  To design these mufflers the team at STILLEN created new, proprietary, machinery to complete the assembly and welding process in-house.  This equipment along with the manufacturing procedures developed exclusively for this muffler allows the team to precisely tig weld the polished stainless steel muffler bodies and end caps leaving behind a “stack of dimes” finish with a fantastic multi-color burn trail from the tig welding process.  

To finish the exhaust system the customer has a choice of polished stainless, burnt stainless steel, or carbon fiber exhaust tips.  Additionally the exhaust system is supported by a STILLEN branded cross-brace supporting and accentuating the exhaust system.  We are extremely proud to offer this exhaust system and even more proud to continue our many decades of American manufacturing.

2023-2024 Nissan Z | STILLEN Cat Back Exhaust "Street Series"

$1,556.63

How fast is shipping?

Most orders placed on a weekday before 1pm EST will ship out the same day. Otherwise, it is common for parts to ship in 2-3 days from order date. Please note that both of these exclude special order items, which are clearly marked on product pages.

What is the returns policy?

Most products sold by Axion Industries LLC are covered by our Standard Return Policy and may be returned within 30 days of the original invoice date for a refund. Please note that a restocking fee will apply (see "Refunds Policy" in FAQ).

All returns require written approval from Axion Industries LLC. Original Shipping and return shipping charges are strictly non-refundable. For more information regarding our shipping refund policy, please refer to the "Refunds Policy" on FAQ.

Does it come with a warranty?

Axion Industries LLC does not offer any type of warranty coverage for defective products except those that are manufactured by us. However, the majority of the products available through our website are covered separately under a manufacturer's warranty.

If you recently purchased a product from Axion Industries LLC and are concerned about the fitment or performance of your item, please contact us for assistance.

Our customer service representatives can provide limited support, advice, and assistance identifying the possibility of any manufacturer defects. If we suspect your product does have serious defects, our customer service department can serve as a contact with the manufacturer to help arrange a warranty inspection and, if applicable, any necessary repairs or replacement shipments.

If you wish, you may also contact the manufacturer directly for information regarding product eligibility and specific terms and conditions of warranty coverage.

What happens if I want to cancel?

Unfulfilled, cancelled orders will require a 10%-30% cancellation fee unless you choose store credit (a 5%-15% cancellation fee will apply in this case). This fee is to:

  1. Recover the processing fees for both the order you placed and the order
    you canceled.
  2. Cancellation fees imposed by the manufacturer, should the part be coming
    straight from them. OR
  3. Restocking fees, since the part now has to be resold.

The following may NOT be canceled:

  • Orders that are already fulfilled – the Returns Policy will apply.
  • Pre-orders - the Returns Policy will apply.
  • Special Order items that were approved for sourcing by the customer.
  • Items that are on sale and labeled "final sale" during that sale period.

Please see "Order Cancellation" under FAQ for more.