Cutout Valve Power Gains / Turbo Spool Increase

[NiceBMW]

Gotcha, don't think it'll do much besides more noise. DAW can get you a 3.5" exit one for a decent price if you reach out to Shawn. Would be worth it in my opinion

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[stormgreysupra]

Gotcha, don't think it'll do much besides more noise. DAW can get you a 3.5" exit one for a decent price if you reach out to Shawn. Would be worth it in my opinion

it won’t fit my turbo.

 

[NiceBMW]

Makes sense with the top-mount. I'm not sure what the ID of the entire DP is but it may be worth having a good exhaust guy modify the one you have to 3.5-4". I even have 2' of stainless 3.5" left over from my experiment if you could use it.

 

[stormgreysupra]

Makes sense with the top-mount. I'm not sure what the ID of the entire DP is but it may be worth having a good exhaust guy modify the one you have to 3.5-4". I even have 2' of stainless 3.5" left over from my experiment if you could use it.

appreciate that but I don’t want to go to that extent. I still have to upgrade the intake manifold, fuel system and transmission which will bring way bigger gains.

i just thought if a simple cutout valve makes a significant amount of difference it’s worth doing.

 

[NiceBMW]

Understood man. The cutout couldn't hurt but a bottleneck still exists. GL with the build!

 

[stormgreysupra]

Understood man. The cutout couldn't hurt but a bottleneck still exists. GL with the build!

thank you!

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