Hi, Guest
Yeah, underdrive pulleys would void your warranty. They're something I'm still considering though.
The airbox mod is a minor one, removing the restrictor in the snorkel inlet of the airbox probably helps more. The resonator mod adds some nice noise under throttle and the car "feels" more responsive to throttle changes, but that's probably just me. The K+N panel filter is the road I went, and it has single-handedly raised my fuel economy to the reported max in the city and on the highway, and above. I repeat this one to death, but we averaged 42MPG over 5500KMs driving to the East Coast and back last summer, and that includes city driving and driving through the mountains, plus a few "above the limits" blasts for good measure :rolleyes:
I've been starting to read/hear rumours you can mod the Zetec K+N FIPK kit quite easily to fit onto the SPI stock throttle body. Not sure how it is done to be honest, but it would be a welcome change for sure. I'll post if I find out more about it.
The airbox mod is a minor one, removing the restrictor in the snorkel inlet of the airbox probably helps more. The resonator mod adds some nice noise under throttle and the car "feels" more responsive to throttle changes, but that's probably just me. The K+N panel filter is the road I went, and it has single-handedly raised my fuel economy to the reported max in the city and on the highway, and above. I repeat this one to death, but we averaged 42MPG over 5500KMs driving to the East Coast and back last summer, and that includes city driving and driving through the mountains, plus a few "above the limits" blasts for good measure :rolleyes:
I've been starting to read/hear rumours you can mod the Zetec K+N FIPK kit quite easily to fit onto the SPI stock throttle body. Not sure how it is done to be honest, but it would be a welcome change for sure. I'll post if I find out more about it.
Daily driver 1: 2007 Jeep Wrangler Unlimited Sport "S"
33" BFG Mud-Terrain KM2s, lots of Rough Country gear - bumper, 2.5" lift, swaybar disconnects, Superwinch 10,000lb winch, Detroit Locker in rear D44 axle, custom exhaust, K+N filtercharger, Superchips-tuned.
Daily driver 2: 2006 Subaru Legacy GT
COBB Stage 1+ package - AccessPort tuner, COBB intake and airbox. Stage 2 coming shortly - COBB 3" AT stainless DP and race cat, custom 3" Magnaflow-based exhaust and Stage 2 COBB tune.
33" BFG Mud-Terrain KM2s, lots of Rough Country gear - bumper, 2.5" lift, swaybar disconnects, Superwinch 10,000lb winch, Detroit Locker in rear D44 axle, custom exhaust, K+N filtercharger, Superchips-tuned.
Daily driver 2: 2006 Subaru Legacy GT
COBB Stage 1+ package - AccessPort tuner, COBB intake and airbox. Stage 2 coming shortly - COBB 3" AT stainless DP and race cat, custom 3" Magnaflow-based exhaust and Stage 2 COBB tune.