Kooks Headers · New
Kooks Universal 3 Inch GREEN Catalyst 7.5 Inch Length 400 cell
MPN GE-90147 · Store SKU kshGE-90147
Supplier stock checked 11/7/2026, 4:21:57 PM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
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 3in. High Flow Catalytic Converter Certified to EPA Standards. 3in. I.D. Inlet and Outlet. 4in. Long 4in. O.D Body. 7in. Overall Length. 400 CPSI High Flow Substrate. Rated up to 425 HP/Cat. Ok for use with Forced Induction. 3in. Kooks GREENCATS Catalytic Converter 7in. Long Certified to EPA Standards 3" Kooks GREENCATS Catalytic Converter 7" Long Certified to EPA Standards
Manufacturer fitment & guides
- 3" Kooks GREEN High Flow Catalytic Converter Certified to EPA Standards. 3" I.D. Inlet and Outlet4" Long 4" O.D Body7" Overall Length400 CPSI High Flow SubstrateHelps reduce harmful emissions in exhaust Certified to EPA Standards Catalytic Converter Elimination of check engine light not guaranteedOk for use with Forced Induction RATED FOR 375 HORSEPOWER PER CAT - 750 HORSEPOWER PER PAIR
- Manufacturer-supplied application summary from Turn14; this may not be an exhaustive fitment list.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.
- California Proposition 65: Y
