Stage 2

STAGE 2 — “Full bolt‑ons” with premium hardware (intake, high‑flow catted downpipe(s) or headers, premium intercooler/charge‑air‑cooler, optional premium cat‑back) + retune

BMW (twin‑/single‑turbo)

• S58:$13,000–$16,000
  Anchor parts: AA catted downpipes $2,999; CSF top‑mount charge‑air‑cooler $6,599; Eventuri intake ~$2,995; AWE SwitchPath cat‑back ~$2,995; map update ~$300.

• S55:$7,100–$10,800
  Anchor parts: AA catted downpipes $2,999; CSF S55 top‑mount CAC $1,599 (typical sale); Eventuri S55 intake $2,245; (premium cat‑back adds ~$2,000–$3,000); map update ~$300.

• B58 (G/F chassis):$3,700–$6,200
  Anchor parts: AA catted downpipe $1,499; CSF intercooler $499; Eventuri B58 intake $1,475; (premium cat‑back adds ~$1,800–$2,200); map update ~$300.

• N55:$3,500–$5,800
  Anchor parts: AA catted downpipe $1,199–$1,499; CSF intercooler $499; Eventuri N55 intake $1,475; (premium cat‑back +$1,800–$2,200); map update ~$300.

• N54:$3,300–$5,500
  Anchor parts: premium catted DPs (~$1,000–$1,300 typical), CSF intercooler $499; premium cat‑back $1,500–$2,000; map update ~$300. (CSF N54/N55 IC pricing shown.)

BMW (naturally aspirated & new V8)

• S65 (E9X M3):$4,500–$7,500
  Anchor parts: premium long‑tube headers/x‑pipe/cat‑back sets from ARH/others + intake. (Header systems for comparable GM/BMW platforms run $2,300–$3,300; premium cat‑backs often $1,800–$3,000.)

• S68 (X5M/X6M/M5 G90, XM, M60i):$5,000–$9,000 (before cat‑back)
  Anchor parts: Evolution Racewerks S68 catted set ~$2,495 (G90) or Fabspeed $3,995 (F95/F96), Eventuri S68 intake $2,445. Cat‑back adds $2–$4k depending on brand.

Chevrolet (LT series)

• LT4 (ZL1/CTS‑V/C7 Z06):$5,100–$5,700
  Anchor parts: ATI damper $493 (+ upper pulley ~$250), Rotofab Big Gulp intake $614, ARH long‑tube headers $2,669, DSX primary heat exchanger $810, HPT license $399.99.

• LT5 (C7 ZR1):$4,300–$5,500
  Anchor parts: ARH headers (ZR1) ~$2,450–$2,900; intake ~$600–$700; HX ~$800 (ZR1/C7).

• LT6 (C8 Z06):$3,300–$3,400 for headers only; +$10,500 if you add Akrapovič titanium cat‑back.

• LT1 (C7/Camaro SS/Truck LT1 crate):$4,700–$5,400
  Anchor parts: ARH headers ~$2,500, premium cat‑back $1,500–$2,000, intake $400–$700, HPT license $399.99.

Dodge / Jeep

• Hellcat 6.2 (Charger/Challenger), Trackhawk 6.2:$3,000–$4,500
  Anchor parts: GripTec 2.85" upper $291.95; optional lower damper $493; premium heat exchanger $599–$875; intake $400–$600; tune license as above.

• “Hurricane” 3.0TT (’25 Ram, Wagoneer/Grand Wagoneer):$2,500–$4,500 (aftermarket is just ramping up)
  Anchor parts: Stainless Works 3.0TT downpipe (new listing); aFe Momentum GT Hurricane intake (new release); premium mid‑pipe/cat‑back options now appearing.

Ford

Coyote 5.0 (NA full bolt‑ons):$4,000–$5,500 (headers + premium cat‑back + intake + tune license).

• Coyote 5.0 (Supercharger option):+$8,645–$10,000 for Whipple/Ford Performance kits (Stage 2 examples). Roto-Fab

• EcoBoost 2.7L / 3.5L (’10–’22 F‑150/Raptor):$3,000–$4,700
  Anchor parts: AMS intercooler $699–$1,099; premium catted downpipes $1,200–$1,600; intake $300–$600; cat‑back $1,000–$1,500; HPT license $399.99.

• EcoBoost 3.0L (Explorer ST):$3,200–$4,800
  Anchor parts: HPFP/e‑fuel upgrades exist but for Stage 2 totals I’m anchoring intercooler + downpipes + intake + cat‑back; see Stage 3 for fuel.