Milltek Cat-back Exhaust for Honda/Acura S2000 2.0 litre AP1 (1999-2003) – Sharper Sound, Reduced Back Pressure
This is Milltek's cat-back system for the Honda/Acura S2000 2.0 litre AP1. It replaces everything from the factory catalytic converter rearward with wider-bore pipework, a re-profiled mid-pipe and silencers tuned specifically for this platform, cutting back pressure and sharpening the exhaust note. The factory catalytic converter stays in place, so the car's emissions hardware is left as standard.
It's aimed at owners who want a noticeably different sound and a genuine, if modest, flow improvement without touching anything upstream of the cat: a straightforward bolt-on that doesn't need a remap or any other supporting mods to enjoy.
Specifications
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System Type: Cat-back
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Pipe Diameter: 69.85mm (2.75")
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Tip Style: GT100
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EC Approved: No
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Race System: No
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Fitting Time: approx. 2 to 3 hours (Milltek figure)
Key Features
- Made from T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration
- Mandrel-bent pipework keeps a constant diameter through every bend for unrestricted flow
- 69.85mm (2.75") pipework
- Replaces the standard exhaust from the catalytic converter back, so the factory cat is retained
- Designed, developed and manufactured in the UK by Milltek Sport
Fitment
- Honda/Acura S2000 2.0 litre AP1 (1999-2003)
Not suitable for: the Honda/Acura S2000 2.0 and 2.2 litre AP2, which needs the Milltek Cat-back Exhaust Honda S2000 2.0 & 2.2 litre AP2 04-09; the Honda/Acura Civic Type R EP3 2.0 litre i-VTEC, which needs the Milltek Full System Exhaust Honda Civic Type R EP3 2.0 litre i-VTEC 01-07; the Honda/Acura Civic Type R 2.0 i-VTEC FN2, which needs the Milltek Cat-back Exhaust Honda Civic Type R 2.0 i-VTEC FN2 07-12.
Installation
Milltek quotes a fitting time of approx. 2 to 3 hours. We recommend professional fitting on a ramp. Once fitted, check the tailpipe alignment and re-check all clamps after the first few hundred miles.
Does it fit the Honda/Acura S2000 2.0 and 2.2 litre AP2?
No. For that car, choose the Milltek Cat-back Exhaust Honda S2000 2.0 & 2.2 litre AP2 04-09.
Is it road legal?
Milltek does not list EC approval for this part. Any exhaust used on the road must still meet noise and emissions rules, so check the requirements where you live.
Do I need a remap?
No. It fits behind the factory catalytic converter, so no software changes are needed.
Does it keep the factory catalytic converter?
Yes. It fits behind the factory catalytic converter, which stays in place.
How long does it take to fit?
Milltek quotes approx. 2 to 3 hours.
What is it made from?
T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration better than lower grades.
Is there a warranty?
Yes. Milltek products are covered against defects in materials and workmanship. Contact us with your order number if you have a problem.
