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Hi all I’ve just found this forum tonight and thought I’d ask more experienced users what they are getting power wise after a remap, I’m taking my 08 CTT into Zensport tomorrow morning for a remap and I’m wondering what kind of power I should be expecting with the following mods I’ve had done last week prior to the remap.
HAYWARD AND SCOTT EXHAUST WITH X PIPE, REAR BOXES, SECONDARY CAT DELETE, TURBO S STAINLESS STEEL TIPS. IPD PLENUM K&N PANEL FILTERS AGENCY POWER RECIRC VALVES Many thanks, Andy
Have 03 C4S 55K mi. Both Cats going bad. getting CEL after every 50 to 75 mi. First from bank 1 and now bank 2. Have basic Torque App software to reset. Pain in Butt.
I track car about 3 times a year. No car mods. Run for fun.
Looking to boost HP via new performance exhaust system. Thinking Headers and Sport CATs from Fabspeed. Factory mufflers are original, seem fine and would like to reuse.
Along with perhaps new clamps, gaskets and a few new bolts, does anyone have advise on this?
I installed a complete Used FVD Brombacher exhaust this weekend. Headers, Cats, Mufflers, 02 Sensors. When installing the FVD exhaust I noticed that the post catalytic O2 sensors were on opposite sides of the stock headers. (2001 C2 Manual) The leads were not long enough to go to the opposite side connectors. So I plugged them into the sockets closest to them. I was able to drive for about 30 miles until the CEL light came on. I noticed the idle was a little off, would fluctuate between the 760 - 860 range I think . Car drove fine. When I got back home I checked the codes.
P01030 O2 Sensor Curcuit Bank 1
P1130 Oxygen Sensing
P1126 Oxygen Sensing
P0300 Random Misifre Detected
P0306 Misfire Cyl 6
P0304 Mis Cyl 4
P0305 Mis Cyl 5
02 Sensor Output 0.0v Bank 1 Sensor 1
I hope you enjoyed my drawings.
Would this be due to the post cat O2 sensors be plugged into the opposite connectors? Plugs and tubes were replaced about 6K ago, all the coils looked fine. The 02 sensors came on the exhaust. Could this just be a bad O2 sensor? Would it be advisable to get the DME re tuned for the new exhaust?'
I've recently started changing exhaust components to obtain the exhaust note that makes me smile on my long drives to work. First I purchased a used Instant-G muffler and C pipes from someone who had a 3.6l conversion. In fact, I think this exhaust system was made for the 3.6 conversion as a kit. It sounds very nice and 2.25 inch C pipes and inlets -- low tone sonics. I had a drone at 3K that was quite loud, but a lower tone, still good sound -- but made me tired on long drives. I decided to install 2 inch down pipes from the stock headers to the 2.25 inch C pipes. The drone is completely gone. In fact, I miss any sound without throttle. Albeit, it's a nice departure from the drone sound, it would be nice to have some sound when I let off the throttle. When on the throttle it sounds very nice!! And surprisingly, the car feels much less strained when accelerating. It's like a different car, like it can breath now. Lots more power even at lower RPM, and throughout the power band. I really like the way it easily accelerates at any speed.
So, a few questions:
1. How can gain back some of the lost sound on deceleration? -- Not a top priority, but if changing something means not having the power the way it is now -- then not worth it.
2. Since the system is now essentially restriction free except for the minimally baffled muffler -- is this in any way harmful to the engine? It feels like the motor runs easier with less strain.
3. I tied the secondary O2 sensors up and out of the way. No CEL, but is this some how harming the ECU's attempt at a stoichiometric O2/Fuel mixture. I'm assuming that no default program is triggered by the lack of proper signal these are now sending to the ECU.
4. What do you think of this setup?
Hi guys, first post on this site and i'll appologize off the bat if this is a subject that's been talked about extensively. I tried to search but couldn't really find an exact answer. So this is my first 911. It's a '12 991 S without sport chrono and without PSE. Love the car and frankly when I get on it a bit the sound is gorgeous. . .BUT, where are the burbles?? the little snaps and crackles when I let off the throttle or on decelerations?? That is a trait in this car that I find a must! I like a loud exhaust, i love a dirty sounding angry snarling exhaust, but those burbles and snorts and cracks are huge. . .so my question is how do i get them? replace the center muffler? the sides? both? straight pipe the sides or x pipe the center? or is there something about a car without sport chrono that won't be as burbly??
thanks so much guys and i'm SUPER excited to get my car and start enjoying it!