Originally Posted by 01quadcab

so are they bosh 300 or bosh rv275's? The rv275's add the up to 40hp and the 300's add up to 65 so the statement above makes you wonder. I would work on keeping your boost under 40psi. I wouldn't add any more fuel to the mix with the hx35. I am not sure how it will handle a twins setup I just know don't bark it very often. I really like my s300 and you can find them for a good price now and then.