Have someone else who has had more than one manual tell you how it feels. CDV delete should not do this.
Side note: you don't need to buy anything for this mod. Just pull the CDV out and pop out the restrictor with a small screwdriver. Reinstall and done.
2009 335i Coupe 6MT Blk Sapphire / Blk Leather
2007 328i Coupe 6MT Blk Sapphire / Blk Leather *Sold
1985 Toyota Corolla GTS 5MT 1.5-way Slvr / Blk *Sold
1987 Toyota Corolla GTS 5MT KAAZ 2-way Blk / Blk *Sold