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Kooks Headers
Kooks Universal 3 Inch GREEN Catalyst 7.5 Inch Length 400 cell
SKU: K009 GE-90147
Moderate — 2–4 hours
Overview
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Part #: GE-90147
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" High Flow Catalytic Converter Certified to EPA Standards. 3" I.D. Inlet and Outlet. 4" Long 4" O.D Body. 7" Overall Length. 400 CPSI High Flow Substrate. Ok for use with Forced Induction. RATED FOR 375 HP PER CAT - 750 HP PER PAIR
Vehicle Symptoms
- Check engine light on with P0420 code
- Failed emissions test for high NOx
- Rattling noise from under the car
- Loss of power during acceleration
- Sulfur smell from exhaust
Diagnostic Codes
- P0420 – Cat Sys Efficiency Below Threshold (B1)
- P0430 – Cat Sys Efficiency Below Threshold (B2)
Relevant Conversations
- P0420 code after replacing O2 sensors
- Best high-flow catalytic converter for 3 inch exhaust
- Kooks green cat vs Magnaflow universal cat
- How to weld universal catalytic converter
- Check engine light P0420 fix without CARB
- Upgrade catalytic converter for more horsepower
- Universal cat installation tips for 3 inch exhaust
- Kooks GE-90147 review and dyno results
- Catalytic converter rattling noise replacement cost
- Pair with Kooks headers for full exhaust system
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | Kooks Headers |
| Part Number | K009 GE-90147 |
About MOTORMIA
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Returns & Fitment
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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