Just wondering if anyone here has any comments on the USDM ITR Ex Manifold. I assume it’ll flow better than stock… Any experience?
All i know is that it’s 4-2-1 with a 2.25" collector. Almost bought one too.
The way I see it it may be worth it over the 1-2 peak hp you may gain by going with a big namer… For the price too 
But hey I maybe wrong…