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opinions of eurosport exhaust?
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whilst on the topic of exhausts....
there's these too.
IMO the headers look good for torque with the 4-2-1 setup, where as TSR headers are better for HP (4-1).
Difference between the Yanks and the Poms.
the exhausts too look good, but only come in aluminized steel.
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this is getting way too confusing!!!!!!!!!
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i think it is for road use. supposedly gives a little more torque than 4-1, and nearly the same HP.. but every car is different, and who is going to try both on the same car to find out exactly which is better??Originally posted by hamza View Posti thought 421 was always better?
but saying that, race cars usually have 4-1 for high end HP
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