The HKS Hi-Power 409 is a JASMA-certified 75mm SUH409 stainless steel cat-back exhaust for the Mitsubishi Lancer Evo IV (CN9A), Evo V, and Evo VI (CP9A) with the 4G63T engine, raising close-measurement sound from 91 dB stock to 98 dB with a single 120mm polished SUS304 rear-section tip.
| Type | Cat-back exhaust system (Hi-Power 409) |
| Material | SUH409 stainless steel (SUS304 visible rear section) |
| Pipe Diameter | 75mm |
| Tips | Single 120mm |
| Sound Level | 98 dB (close, HKS); 91 dB stock |
| Road Clearance | 165mm (center pipe) |
| Part Number | 31006-AM004 |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
