The HKS Super Turbo Muffler is a JASMA-compliant 75mm SUS304 stainless steel 2-piece cat-back for the Mitsubishi Lancer Evolution IX (CT9A, 4G63 MIVEC Turbo, 2005-2007), measuring 93 dB close and exiting through a single 124mm tip with 150mm road clearance.
| Type | Cat-back exhaust system (Super Turbo Muffler) — 2-piece (mid + rear silencer) |
| Material | SUS304 stainless steel |
| Pipe Diameter | 75mm |
| Tips | Single 124mm — SSR-style (slotted inner fins, polished) |
| Sound Level | 93 dB (close, HKS); 87 dB stock |
| Road Clearance | 150mm |
| Part Number | 31029-AM001 |
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.
