Greddy Sp1

[ju10]

I'm about to buy a Greddy SP1 muffler. Does anybody know if this is restrictive?

-thanks

 

[TheCrimsonStar]

Any aftermarket muffler is less restrictive than OEM.

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[dlo253]

I love my sp1. Great tone to it..

 

[ju10]

okay thanks I just wanted to know because I've been told that straight through mufflers are the only kind that don't restrict.