Yeah it's been recently found out that the shark tune is kinda trash. I still love the drivability improvement from the throttle response changes, but definitely no noticeable power increase.
http://forum.e46fanatics.com/showthread.php?t=1224198
Yeah it's been recently found out that the shark tune is kinda trash. I still love the drivability improvement from the throttle response changes, but definitely no noticeable power increase.
http://forum.e46fanatics.com/showthread.php?t=1224198
I've bought three Shark Injectors over the last couple years and, in each case, I noticed improved throttle response and other obvious features I won't detail, so they do work to a significant degree. On my xi's (1 auto, 1 6MT), I noticed a small power bump, but I didn't notice any power bump on my ZHP. However, I did notice that my ZHP wasn't hitting 7k rpm like my 6MT xi. Come to find out, my ZHP was hitting the 6,920 rpm limit as poorly advertised. I can't speak to the ECS/Turner changes described by ZHPizza--that may prevent me from buying more in the future and prompt me to pursue some other tune... too bad.
I thought about the Sprint Booster, but the throttle response on all my cars is amazingly instantaneous, but each has different sensitivity. My auto is most sensitive, my 6MT xi seemed perfect, and I used to think my ZHP was under-sensitive and in need of a booster. However, the more I drive the ZHP the more I find I can more precisely control the revs, so I abandoned the idea of the booster which, as I understand it, simply amplifies the input.
Call Me Dane l 2/2004 330i ZHP l 18x8 ET45 BBS CK's wrapped with Michelin Pilot Sport AS3+ @ 245-40-18 l KW V1 Coilovers in front l KW V1 springs w/ Bilstein B8 dampeners in rear l BMW Performance Rotors l UUC StrutBarbarian l Racing Dynamics Rear Strut Bar l Jim Conforti Shark Injector l Light Birch Interior Trim l Bimmian Celly Mount l M3 Trunk Mat l l e90 Performance E-Brake & Shift Knob l M3 Tri-Stitched Boots l AL Headlight Retrofit with ZKW Lenses l CobyWheel Wrap w/M3 Stitching l LCM sw 4.5 triple blink and rear fogs l Maple Interior Trim
6920 RPM is practically the same as 7000 RPM...
I can tell you that that extra revs at the end really help me out on track. There are a few turns on some of the tracks I frequent where it's a waste of time to have to shift up to 4th and right back down to 3rd again. With the extra revs, I can just let it rev out, and it's practically right at the rev limiter by the time I have to start braking.
Not to throw a loop in the discussion, but I installed the Sprint Booster on a 2002 330Cic (AT), and it was great. Easy to install, no battery charger necessary,
and it was a marked difference from the stock setup. I also had it on a VW Beetle Turbo S and it was similar-fast throttle response, easy to install, and no issues for the duration of ownership. (I own neither car at this point)
BAV Stage 1 - BlueBus - UltraGauge - V1 - Orion V4's - ARC-8's - Brembo 996
TTFS Engine/SMG Tune/CSL 255 - SGT Headers/Sect 1/SCZA - Evolve Eventuri
VIS XTS CF Hood - CF Lip/Console/Diffuser - OE CSL Trunk - BWS 500S 9k/11k
Botond is not a fan of Sprint Booster....
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Botond is allowed to be incorrect.
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Randeaux/Rando/John/jr - '06 Cic ZHP; Southern California
"ZHP or not, I still like you"
ZHP Performance Package, Cold Weather Package, Leather, Jet Black/Black/BlackCube, NAV, Anthracite Black "my individual" interior trim
ESS Stage 1 Twin Screw Supercharger, Sprint Booster, BMW Perf Intake, Magnaflow Exhaust, Dinan TB & STEP S/W, UCC Sway Bars, Apex EC-7 18x8.5 ET38
Suspension: AST 44100 dampers, Bimmerworld front adjustable end links, Swift springs (8K front, 10K rear), Vorshlag camber plates
Dynavin D99+, Hardwire V1 (w/V1 Connection), BSW Stage 1 Speakers, Kicker Amp/Subwoofer
BMW Performance Strut Brace, Orion V2 Angel Eyes, No-holes License Plate, SMG Paddle Shift Mod, Besian VANOS, Gold DISA, Fan Delete, M3 Side Mirrors
Note: Actual car no longer resembles signature picture
BAV Stage 1 - BlueBus - UltraGauge - V1 - Orion V4's - ARC-8's - Brembo 996
TTFS Engine/SMG Tune/CSL 255 - SGT Headers/Sect 1/SCZA - Evolve Eventuri
VIS XTS CF Hood - CF Lip/Console/Diffuser - OE CSL Trunk - BWS 500S 9k/11k