SKU: 75958880215

Evo 8/9 3.5" Signature Cat Back Exhaust System

Sale price$899.55 Regular price$999.50
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Pay in installments of $249.88 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 23 - Jul 28

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Evo 8/9 3.5" Signature Cat Back Exhaust SystemIntroducing the Evo 8 9 Titanium Cat Back Exhaust! Welcome to light weight performance. Utilizing some of the highest grade CP1 Titanium for quality and weight reduction, this system is sure to please. The design has minimized the total bends to fewer than 36 total degrees! A staggering total weight of 11. 4lbs; it is one of the lightest on the market (3. 5 system, 12 muffler). Features Info: 3. 5 with 12 muffler option 11. 4lbs 90 dB at idle, 127 dB

Introducing the Evo 8/9 Titanium Cat Back Exhaust! Welcome to light weight performance. Utilizing some of the highest grade CP1 Titanium for quality and weight reduction, this system is sure to please. The design has minimized the total bends to fewer than 36 total degrees! A staggering total weight of 11.4lbs; it is one of the lightest on the market (3.5” system, 12” muffler).

Features/Info:

- 3.5” with 12” muffler option 11.4lbs 

- 90 dB at idle, 127 dB at standing 2 step 

- Fewer than 36 total degrees of bends 

- Signature RK Titanium 4” tip section 

- O2 sensor bung at front 

- Adjustable hanger sleeve on muffler

Videos can be found on our YouTube channel: 
https://www.youtube.com/channel/UCK7WwKKyq_SLalqc218jmhw

Add a matching test pipe to your order for $200 more!

Additional notes:

Our 3.5" systems will have a transition piece to mate up to 3" testpipes/downpipes

These kits do not include a testpipe!

YOU MUST EMAIL at time of purchase to have a 3.5” flange instead. The 3.5”

flange WILL NOT mate to a 3” flange!! 

There will be no special request coloring options for these systems. Each system may be colored slightly different from one to the next. 

All systems are built to order; lead times apply. 

Need help with installation? View our page here for tips and photos to help with the install process! https://rktitanium.com/pages/evo-8-9-exhaust-installation

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: 75958880215

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4.9 ★★★★★
Based on 6 reviews
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Verified Purchase
LGN
Battle Creek, US
★★★★★ 5
Good option for an aftermarket replacement solution.
Size: 3+12+12+2+1 pack
I've been very happy with this product. I think it is a good price point for what is included. Everything was a directly compatible and everything fit as you would expect. The filter quality is good and since there are plenty in the kit I find I change the filters more often which is probably a good thing. I recommed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 3, 2025
D
Verified Purchase
deb
Omaha, US
★★★★★ 5
Eufy Brushes wear out with daily use
Size: 4 Pack
These brushes help the Eufy continue to run efficiently. I have 2 dogs and run 2 Eufies daily. It is surprising how much sand, dust, gravel and hair gets vacuumed. My furniture isn't as dusty and my floor doesn't need mopping as often.
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Reviewed in the United States on January 7, 2026
B
Verified Purchase
Brian M.
Waukegan, US
★★★★★ 4
It works
Size: 2+12+12+2 pack
Fits as expected and it's nice to have so many replacement parts. This item is priced well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2026
S
Verified Purchase
Suzanne
Dallas, US
★★★★★ 5
Fits my old eufy
Size: 3+12+12+2+1 pack
This set fits my older model eufy and has extra parts for newer models. The filters did not fit our model (our fault for not doing proper research) but the fan sweeper is awesome.
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Reviewed in the United States on October 5, 2024
D
Verified Purchase
Dan
San Leandro, US
★★★★★ 5
Lots of extras!
Size: 2+12+12+2 pack
The brushes are a bit flimsier than the original but otherwise fine. I needed it for the rectangular filters more than anything
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Reviewed in the United States on March 7, 2026

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