Jdm hawk exhaust 2nd pipe
 

I've read the 2nd pipe in a jdm exhaust is a resonator and a uk car is a second cat. Is this correct?

Also I'm not too bothered about how loud the exhaust is but would changing the resonator to a decat be less restrictive and make any gains?

Yes I would have to mapped in.

A resonator is not a restriction so removing it will only make it slightly louder and won’t require a map tweak 😉

I don't mind loud exhausts but if it's a resonator and twin scroll leave it alone cause it turns into a horribly annoying rasp.

The 2nd exhaust pipe on your JDM Hawkeye has a pre-tax price of ¥69200 ( about £485)
Not exactly cheap for a resonator.


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